{"title":"RI \u0026 Viscometry Detectors","description":null,"products":[{"product_id":"wyatt-microoptilab-refractive-index-detector-for-uhplc","title":"microOptilab Refractive Index Detector for UHPLC","description":"\u003cspan\u003e\u003cp align=\"center\"\u003e\u003cimg alt=\"Optilab refractometer\" class=\"scale-with-grid\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/10\/microOptilab-Hero-Neon-10-2-19.jpg\" width=\"65%\"\u003e\u003c\/p\u003e\u003c\/span\u003e\n\u003cp\u003eUniversal Detection for UHPLC and SEC-MALS\n\u003c\/p\u003e\u003cp\u003eIndependent of Chromaphores\u003c\/p\u003e\n\u003cp\u003eIndependent of chromaphores or fluorophores, differential Refractive Index (dRI) detectors measure concentrations of all types of samples in almost all solvents. The microOptilab brings the universal detection capabilities, unsurpassed concentration range, and superb sensitivity and linearity – familiar from the \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/optilab-refractive-index-detector.html\"\u003eOptilab\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e – to the domain of UHPLC.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eApplication Note\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/wyattfiles.s3.us-west-2.amazonaws.com\/literature\/app-notes\/sec-mals-proteins\/absolute-molar-mass-uhplc.pdf\" target=\"_blank\"\u003e\u003ci class=\"fa fa-file-pdf-o fa-lg\"\u003e\u003c\/i\u003eDownload our Application Note on the microOptilab\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSEC-MALS with UHPLC\u003c\/p\u003e\n\u003cp\u003eLike standard SEC, UHPLC-SEC analysis relying on column calibration with molecular standards is unreliable when the standards do not accurately reflect your samples in terms of conformation, non-ideal (e.g., hydrophobic) column interactions or reversible association. \u003cb\u003eSEC-MALS\u003c\/b\u003e employs a \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/microDawn-multi-angle-detector-uhplc-sec-mals.html\"\u003emicroDAWN\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e MALS detector downstream of the SEC column and UV detector, to determine molar mass \/ molecular weight distributions of macromolecules independently of column calibration.\u003c\/p\u003e\n\u003cp\u003eRefractive index detection is an important component of any SEC-MALS system, and necessary for analyzing conjugated proteins or polymers devoid of chromaphores. The microOptilab connects with the microDAWN MALS detector for a complete UHP-SEC-MALS setup that transfers the many benefits of SEC-MALS analysis to the realm of UHPLC.\u003c\/p\u003e\n\u003cp\u003eKey benefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery low band broadening, \u0026lt; 4 µL, to maintain the resolution of very narrow UHPLC peaks\u003c\/li\u003e\n\u003cli\u003eExtraordinary dRI measurement range, -4.7 x 10\u003csup\u003e-3\u003c\/sup\u003e to +4.7 x 10\u003csup\u003e-3\u003c\/sup\u003e RIU (comparable to 25 mg\/mL protein in PBS)\u003c\/li\u003e\n\u003cli\u003eHighly sensitive, ± 1.5 x 10\u003csup\u003e-9\u003c\/sup\u003e RIU across the \u003ci\u003eentire\u003c\/i\u003e measurement range\u003c\/li\u003e\n\u003cli\u003eMeasures solvent refractive index, require for MALS calculations\u003c\/li\u003e\n\u003cli\u003eMeasures at the same wavelength as the MALS detector, for maximum accuracy in MALS calculations\u003c\/li\u003e\n\u003cli\u003eTemperature range 4 °C to 65 °C for proteins and polymers that require a range of temperatures\u003c\/li\u003e\n\u003cli\u003eHigh-resolution, touch-screen front panel displays data graphs and instrument diagnostics, even with the host computer turned off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnparalleled features\u003c\/p\u003e\n\u003cp\u003eConsidering the extremely small peak volumes of UHPLC, band broadening in the microOptilab is kept to the absolute minimum, at less than 4 µL, as compared to 20 - 40 µL or more for standard RI detectors. As a result, the superior resolution from UHPLC columns and instruments will not be compromised with the microOptilab RI detector.\u003c\/p\u003e\n\u003cp\u003eEven though the microOptilab offers a dRI measurement range orders of magnitude beyond that of other UHPLC dRI detectors, unlike other detectors there are no range or gain settings in the microOptilab. The \u003ci\u003efull\u003c\/i\u003e range of instrument detection is always present, and the full sensitivity exists over the \u003ci\u003eentire\u003c\/i\u003e range. The small flow cell and proprietary temperature regulation enable stable RI baselines and signals which further enhance the detector's sensitivity.\u003c\/p\u003e\n\u003cp\u003eUnlike all other dRI detectors, the microOptilab also measures absolute refractive index in order to determine solvent RI, necessary in light scattering calculations and useful in assessing the accuracy of mixing of solvent gradients.\u003c\/p\u003e\n\u003cp\u003eThe microOptilab can be operated \u003ci\u003ebelow\u003c\/i\u003e ambient temperatures as easily as above ambient. No hassle temperature control can be programmed down to 4 °C or as high as 65 °C.\u003c\/p\u003e\n\u003cp\u003eThe microOptilab is compatible with \u003ci\u003eall\u003c\/i\u003e UHPLC systems.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.0047 to +0.0047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak-to-peak noise (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 1.5 x 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResponse Time\n(User Selectable)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.04 to 5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAbsolute Refractive Index Range (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2 to 1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBand Broadening\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 4 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFill Volume (inlet tubing + flow cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.7 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutlet tubing (0.030\" ID)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e228 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack pressure created at inlet port (@ 0.5 mL\/min H2O, 20 °C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;320 psi (22 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum permissible back pressure allowed at outlet port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 psi (2 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 °C to 65 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.005 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e660 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety Sensors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVapor and liquid (leak)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 10 V or ± 1 V output, 18 bits resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComputer Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEthernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\" (178 mm), high-resolution, multi-touch display for viewing\/setting signals, instrument settings and diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog In (16 bits, ± 10 V A\/D), Zero dRI, Purge,\nRecycle In, Autoinject In, Alarm In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject Retransmit, Alarm Out, Recycle Out (to switch Orbit between waste and recycle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e58 cm (L) x 36 cm (W) x 18 cm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Wyatt Technology","offers":[{"title":"Standard","offer_id":46488398528591,"sku":"WOP1U","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"658nm","offer_id":46488398561359,"sku":"WOP1U-65","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/microOptilab-Hero-Neon-10-2-19_8df3145a-587e-4105-9a61-39b2759e8c49.jpg?v=1787675377"},{"product_id":"wyatt-optilab-refractive-index-detector","title":"Optilab Refractive Index Detector","description":"\u003cspan\u003e\u003cp align=\"center\"\u003e\u003cimg alt=\"Optilab, refractometer\" class=\"scale-with-grid\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/10\/Optilab-Hero-Neon9-20-19.jpg\" width=\"65%\"\u003e\u003c\/p\u003e\u003c\/span\u003e\n\u003cp\u003eUniversal Detection for Chromatography and FFF Separations\u003c\/p\u003e\n\u003cp\u003eIndependent of Chromaphores\u003c\/p\u003e\n\u003cp\u003eIndependent of chromaphores or fluorophores, differential Refractive Index (dRI) detectors serve as accurate and versatile concentration detectors in all types of solvents. dRI is part of standard instrumentation for a variety of macromolecular characterization techniques including standard chromatography, SEC-MALS, FFF-MALS and CG-MALS.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eUnique dRI Detector\u003c\/p\u003e\n\u003cp\u003eThe Optilab is a unique dRI detector for standard HPLC\/GPC with 256 times the detection power and 50 times the dynamic range of \u003ci\u003eevery other \u003c\/i\u003eRI detector for chromatography in existence today, making it a valuable addition to any MALS setup.\u003c\/p\u003e\n\u003cp\u003eUsing a combination of cutting-edge semiconductor photodiode technology and proprietary computer algorithms, the Optilab achieves an unprecedented combination of sensitivity and range. These features mean that it addresses both standard chromatographic applications and some challenges unique to light scattering measurements such as high concentrations, determination of sample refractive increments (\u003ci\u003edn\/dc\u003c\/i\u003e) and solvent refractive index.\u003c\/p\u003e\n\u003cp\u003eKey Benefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtraordinary dRI measurement range, -0.0047 to +0.0047 RIU (comparable to 25 mg\/mL protein in PBS)\u003c\/li\u003e\n\u003cli\u003eHighly sensitive, ±7.5 x 10\u003csup\u003e-10\u003c\/sup\u003e RIU across the \u003ci\u003eentire\u003c\/i\u003e measurement range\u003c\/li\u003e\n\u003cli\u003eMeasures solvent absolute refractive index, required for MALS calculations\u003c\/li\u003e\n\u003cli\u003eMeasures at the same wavelength as the MALS detector, for maximum accuracy in MALS calculations\u003c\/li\u003e\n\u003cli\u003eBand broadening \u0026lt; 20 µL preserves SEC resolution\u003c\/li\u003e\n\u003cli\u003eTemperature range 4 °C to 65 °C for proteins and polymers that require a range of temperatures\u003c\/li\u003e\n\u003cli\u003eHigh-resolution, touch-screen front panel displays data graphs and diagnostics, even with the host computer turned off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnparalleled Features\u003c\/p\u003e\n\u003cp\u003eEven though the Optilab offers a dRI measurement range orders of magnitude beyond that of other dRI detectors, unlike other detectors there are no range or gain settings in the Optilab. The \u003ci\u003efull\u003c\/i\u003e range of instrument detection is \u003ci\u003ealways\u003c\/i\u003e present, and the full sensitivity exists over the \u003ci\u003eentire\u003c\/i\u003e range.\u003c\/p\u003e\n\u003cp\u003eThe Optilab can also do something no other on-line refractive index detector can: it can measure the \u003ci\u003eabsolute\u003c\/i\u003e refractive index of a solution. In addition, it can measure the \u003ci\u003edn\/dc\u003c\/i\u003e of a solvent at the \u003ci\u003esame\u003c\/i\u003e wavelength of light as the light scattering instrument. And just to make sure it can't be matched, you can replace the light source in the Optilab for other wavelengths (e.g., 690, 633, 488, etc.) in just minutes!\u003c\/p\u003e\n\u003cp\u003eThe Optilab can go below ambient temperatures as easily as above ambient. No hassle temperature control can be programmed from 4 °C to 65 °C. Compatible with all HPLC systems.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.0047 to +0.0047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak-to-peak noise (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 7.5 x 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh Concentration Option Range (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.0026 to +0.034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh Concentration Option Peak-to-peak noise (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 1.5 x 10 RIU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResponse Time\n(User Selectable)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 to 5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAbsolute Refractive Index Range (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2 to 1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity (RIU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBand Broadening\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 12 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFill Volume (inlet tubing + flow cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e51.4 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutlet tubing (0.030\" ID)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e370 μL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBack pressure created at inlet port (@ 0.5 mL\/min H2O, 20 °C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;22 psi (1.5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum permissible back pressure allowed at outlet port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 psi (2 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 °C to 65 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.005 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptilab: 660 nm; Optilab HC: 660 nm standard, factory option for 785 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety Sensors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVapor and liquid (leak)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22+ bits @ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 10 V or ± 1 V output, 18 bits resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComputer Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEthernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\" (178 mm), high-resolution, multi-touch display for viewing\/setting signals, instrument settings and diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog In (16 bits, ± 10 V A\/D), Zero dRI, Purge,\nRecycle In, Autoinject In, Alarm In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject Retransmit, Alarm Out, Recycle Out (to switch Orbit between waste and recycle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e58 cm (L) x 36 cm (W) x 18 cm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wyatt.com\/products\/optilab-brochure-request.html\" target=\"_blank\"\u003eBrochure\u003c\/a\u003e\u003c\/p\u003e","brand":"Wyatt Technology","offers":[{"title":"Standard","offer_id":46488398626895,"sku":"WOP1","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"High-Concentration","offer_id":46488398659663,"sku":"WOP1H","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"658nm","offer_id":46488398692431,"sku":"WOP1-65","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"High Concentration, 658nm","offer_id":46488398725199,"sku":"WOP1H-65","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"High Concentration, 785nm","offer_id":46488398757967,"sku":"WOP1H-78","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/Optilab-Hero-Neon9-20-19_9309252a-3f5c-4b8b-b3f8-f78b86962b96.jpg?v=1787675382"},{"product_id":"wyatt-microviscostar-online-differential-viscometer","title":"microViscoStar Online Differential Viscometer","description":"\u003cspan\u003e\u003cp align=\"center\"\u003e\u003cimg alt=\"microViscoStar\" class=\"scale-with-grid\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/10\/microViscoStar-Hero-Neon-10-2-19.jpg\" title=\"microViscoStar-1500\" width=\"65%\"\u003e\u003c\/p\u003e\u003c\/span\u003e\n\u003cp\u003emicroViscoStar: Online differential viscometer for UHPLC.\u003c\/p\u003e\n\u003cp\u003eHighly Sensitive\u003c\/p\u003e\n\u003cp\u003eA highly sensitive, on-line differential viscometer used with \u003ca href=\"https:\/\/www.wyatt.com\/solutions\/techniques\/sec-iv-polymer-molar-mass-and-conformation.html\"\u003eSEC-MALS-IV\u003c\/a\u003e to determine the size and conformation of polymers, proteins and peptides separated by UHPLC.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eMultiple Novel Technologies\u003c\/p\u003e\n\u003cp\u003eThe microViscoStar\u003csup\u003e™\u003c\/sup\u003e incorporates multiple novel technologies to provide the highest sensitivity, stability and solvent compatibility of any available viscometer for UHPLC. Its ease-of-use and serviceability make it the perfect companion for Wyatt's \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/microDawn-multi-angle-detector-uhplc-sec-mals.html\"\u003emicroDAWN\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e light scattering and \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/microOptilab-uhplc-refractometer-sec-mals.html\"\u003emicroOptilab\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e refractive index detectors for UHPLC.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eAPC and UHPLC Applications\u003c\/p\u003e\n\u003cp\u003eView the webinar \u003ca href=\"https:\/\/www.wyatt.com\/library\/webinars\/development-of-a-new-online-micro-viscometer-for-apc-and-uhplc-applications.html\"\u003eDevelopment of a New Online Micro-Viscometer for APC and UHPLC Applications\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTo learn about the technological breakthroughs implemented in the microViscoStar, download \u003ca href=\"https:\/\/wyattfiles.s3.us-west-2.amazonaws.com\/literature\/white-papers\/WP9005-ViscoStar-Innovations-in-Online-Viscometry.pdf\" target=\"_blank\"\u003eViscoStar: Innovations in Online Viscometry for GPC\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAnother path to polymer and protein characterization: SEC-MALS-IV\u003c\/p\u003e\n\u003cp\u003eWhen coupled with UHPLC size-exclusion chromatography and a compatible concentration detector such as the \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/optilab-refractive-index-detector.html\"\u003eOptilab\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e, the microViscoStar derives the intrinsic viscosity (IV) of polymers, rapidly and with minimal sample and solvent consumption. An inherently valuable physico-chemical property in itself, IV is best utilized together with molar mass information from a microDAWN multi-angle light scattering (SEC-MALS-IV) to  derive the \u003ci\u003ehydrodynamic radius\u003c\/i\u003e, \u003ci\u003econformation\u003c\/i\u003e, and \u003ci\u003ebranching ratio\u003c\/i\u003e of a macromolecule in solution.\u003c\/p\u003e\n\u003cdiv class=\"column one-second\"\u003e\n\u003cp\u003eKey benefits of the microViscoStar\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh sensitivity\u003c\/b\u003e, equivalent to 5 ng of 100 kDa polystyrene in THF at 1.0 mL\/min injected onto a standard GPC column\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh dynamic range\u003c\/b\u003e of over 135,000:1. The full measurement range corresponds to over 13 mg\/mL of 100 kDa polystyrene in THF\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtended solvent compatibility\u003c\/b\u003e with all-316 stainless steel transducers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTemperature range\u003c\/b\u003e from 4 °C to 70 °C for polymers or proteins that require a range of temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimal band broadening\u003c\/b\u003e thanks to fast pressure transducers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePump pulse suppression\u003c\/b\u003e to below 4 Pa (hardware alone) or 1 Pa (hardware + software) without loss of chromatographic resolution \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAutomated capillary bridge tuning\u003c\/b\u003e with no moving parts, to guarantee a perfectly balanced bridge, every run\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced thermal stability\u003c\/b\u003e with drift of \u0026lt;1.25 Pa\/hour\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e \n\u003cp\u003eSEC-IV without MALS?\u003c\/p\u003e\n\u003cp\u003eYes, as much as we love MALS for optimal polymer analysis, it's true that there are occasions when it just won't fit the bill.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eUniversal calibration\u003c\/i\u003e is a parallel technique to SEC-MALS for determining molecular weight, commonly used to characterize linear polymers. While universal calibration overcomes some of the problematic issues  associated with column calibration by reference molecules, it does not account for non-ideal column behavior caused by chemical solute-column interactions or hyperbranching. \u003c\/p\u003e\n\u003cp\u003eUniversal calibration is particularly-well suited to replace MALS for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eStrongly fluorescent polymers\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeakly-scattering\u003c\/b\u003e polymer\/solvent systems with very low \u003ci\u003edn\/dc\u003c\/i\u003e values\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003eThe Mark-Houwink-Sakurada relationship\u003c\/i\u003e makes use of empirical relationships between intrinsic viscosity and molar mass, specific to each polymer and solvent, to estimate molar mass from SEC-IV measurements. Of course, the best way to determine MHS coefficients is to measure them using SEC-MALS-IV and ASTRA!\u003c\/p\u003e\n\u003cp\u003eGo to the \u003cb\u003eAdvanced Technology\u003c\/b\u003e tab to learn more about the unique features of the microViscoStar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column one-second\"\u003e\n\u003cp align=\"center\"\u003e\u003cimg alt=\"microViscostar pump pulse  suppression\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/05\/pump-pulse-suppression-with-inset.jpg\" title=\"microViscostar pump pulse suppression\"\u003e\u003c\/p\u003e\n\u003cp align=\"left\" style=\"color:#075c97;font-size:14px;padding-left:30px\"\u003ePatented pulse compensation technology in the microViscoStar eliminates pump fluctuations. At the hardware level, the bridge is impedance-matched for dynamic balance, greatly reducing the effect of pump pulses. An additional layer of software filtering eliminates residual pump pulses.\u003c\/p\u003e\n\u003cfigure style=\"margin-left: 15px; text-align: center;\"\u003e\u003cimg alt=\"microViscoStar measurements of epoxy resins\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/05\/mVS-epoxy.png\" title=\"microViscoStar measurements of \n        epoxy resins\"\u003e\n\u003cp align=\"left\" style=\"color:#075c97;font-size:14px;padding-left:30px\"\u003eThe microVisoStar maintains the narrow peaks and excellent resolution of UHPLC with maximum sensitivity. In this graph, the refractive index and specific viscosity chromatograms of an epoxy resin are overlaid with the molar mass and intrinsic viscosity results calculated from MALS and specific viscosity data, respectively, at each elution volume. The sample was separated on four Waters\u003csup\u003e®\u003c\/sup\u003e APC XT columns in series with pore sizes of 45, 125, 450 and 900 Å.\u003c\/p\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity (minimum detectable sample)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 ng of 100 kDa polystyrene in THF at 1 mL\/min, under typical UHPLC-SEC conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.05 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.9 kPa, protected against overpressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDynamic range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e135,000:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLinearity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure drift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1.25 Pa\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapillary bridge autobalance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal, leak-free mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample shear rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15000 Hz with water at 1 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. flow rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAqueous: 1 mL\/min; THF: 1 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDelay volume options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.4 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. permissible pressure inlet to outlet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 kPa (435 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWetted Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel, PTFE, zirconium silicate, Kalrez , Inconel, 26-1 Stainless Steel, Nickel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 °C to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.005°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 ºC to 40 ºC, 20% to 70% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 bits @ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject contact closure, Alarm In, Analog In: 2 differential inputs, 16 bits resolution, range -10 V to +10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject Retransmit, Alarm Out, Recycle Out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEthernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\" (178 mm), high-resolution, multi-touch display for viewing\/setting signals, instrument settings and diagnostics.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 cm (L) x 36 cm (W) x 17 cm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wyatt.com\/products\/microviscostar-brochure-request.html\" target=\"_blank\"\u003eBrochure\u003c\/a\u003e\u003c\/p\u003e","brand":"Wyatt Technology","offers":[{"title":"Standard","offer_id":46488398823503,"sku":"WUV4","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"Standard Delay Column","offer_id":46488398856271,"sku":"WUV4-01","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/microViscoStar-Hero-Neon-10-2-19_aca2bc34-e001-4882-ae70-6f70937771f3.jpg?v=1787675383"},{"product_id":"wyatt-viscostar-online-differential-viscometer","title":"ViscoStar Online Differential Viscometer","description":"\u003cspan\u003e\u003cp align=\"center\"\u003e\u003cimg alt=\"ViscoStar III\" class=\"scale-with-grid\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/10\/ViscoStar-Hero-Bright-Screen-9-19.jpg\" title=\"ViscoStar-Hero-Neon-800\" width=\"65%\"\u003e\u003c\/p\u003e\u003c\/span\u003e\n\u003cp\u003eViscoStar: The next generation online differential viscometer.\u003c\/p\u003e\n\u003cp\u003eHighly Sensitive\u003c\/p\u003e\n\u003cp\u003eA highly sensitive, on-line differential viscometer used in conjunction with \u003ca href=\"https:\/\/www.wyatt.com\/solutions\/techniques\/sec-iv-polymer-molar-mass-and-conformation.html\"\u003eSEC-MALS-IV\u003c\/a\u003e to determine the size and conformation of all types of biopolymers, synthetic polymers and even proteins and peptides.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eMultiple Novel Technologies\u003c\/p\u003e\n\u003cp\u003eThe ViscoStar incorporates multiple novel technologies to provide the highest sensitivity, stability and solvent compatibility of any available viscometer for GPC. Its ease-of-use and serviceability make it the perfect companion for Wyatt's \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/dawn-multi-angle-light-scattering-detector.html\"\u003eDAWN\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e light scattering and \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/optilab-refractive-index-detector.html\"\u003eOptilab\u003csup\u003e™\u003c\/sup\u003e\u003c\/a\u003e refractive index detectors.\u003c\/p\u003e\n\u003chr class=\"no_line\" style=\"margin: 0 auto 10px auto\"\u003e\n\u003cp\u003eWhite Paper\u003c\/p\u003e\n\u003cp\u003eDownload \"\u003ca href=\"https:\/\/wyattfiles.s3.us-west-2.amazonaws.com\/literature\/white-papers\/WP9005-ViscoStar-Innovations-in-Online-Viscometry.pdf\" target=\"_blank\"\u003eViscoStar: Innovations in Online Viscometry for GPC\u003c\/a\u003e\".\u003c\/p\u003e \n\u003cp\u003eAnother path to polymer and protein characterization: SEC-MALS-IV\u003c\/p\u003e\n\u003cp\u003eWhen coupled with size-exclusion chromatography and a concentration detector such as the Optilab\u003csup\u003e™\u003c\/sup\u003e, the ViscoStar derives the intrinsic viscosity (IV) of polymers. An inherently valuable physico-chemical property in itself, IV is best utilized together with molar mass information from multi-angle light scattering (SEC-MALS-IV) to derive the \u003ci\u003ehydrodynamic radius\u003c\/i\u003e, \u003ci\u003econformation\u003c\/i\u003e, and \u003ci\u003ebranching ratio\u003c\/i\u003e of a macromolecule in solution.\u003c\/p\u003e\n\u003cdiv class=\"column one-second\"\u003e\n\u003cp\u003eKey benefits of the ViscoStar\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh sensitivity\u003c\/b\u003e, equivalent to 100 ng of 100 kDa polystyrene in THF at 1.0 mL\/min injected onto a standard GPC column\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh dynamic range\u003c\/b\u003e of over 135,000:1. The full measurement range corresponds to over 13 mg\/mL of 100 kDa polystyrene in THF\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtended solvent compatibility\u003c\/b\u003e with all-316 stainless steel transducers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTemperature range\u003c\/b\u003e from 4 °C to 70 °C for polymers or proteins that require a range of temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimal band broadening\u003c\/b\u003e thanks to fast pressure transducers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePump pulse suppression\u003c\/b\u003e to below 4 Pa (hardware alone) or 1 Pa (hardware + software) without \n              loss of chromatographic resolution \n  \t\t\t\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAutomated capillary bridge tuning\u003c\/b\u003e with no moving parts, to guarantee a perfectly balanced bridge, every run\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced thermal stability\u003c\/b\u003e with drift of \u0026lt;2.5 Pa\/hour\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSEC-IV without MALS?\u003c\/p\u003e\n\u003cp\u003eYes, as much as we love MALS for optimal polymer analysis, it's true that there are occasions when it just won't fit the bill.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eUniversal calibration\u003c\/i\u003e is a parallel technique to SEC-MALS for determining molecular weight, commonly used to characterize linear polymers. While universal calibration overcomes some of the problematic issues associated with column calibration by reference molecules, it does not account for non-ideal column behavior caused by chemical solute-column interactions or hyperbranching.\u003c\/p\u003e\n\u003cp\u003eUniversal calibration is particularly-well suited to replace MALS for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eStrongly fluorescent polymers\u003c\/b\u003e, in particular those not adequately addressed by a \n      \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/dawn-multi-angle-light-scattering-detector.html\"\u003eDAWN™\u003c\/a\u003e with long-wavelength (785 nm) laser or a standard DAWN (685 nm) with fluorescence-blocking filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeakly-scattering\u003c\/b\u003e polymer\/solvent systems with very low \u003ci\u003edn\/dc\u003c\/i\u003e values\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003eThe Mark-Houwink-Sakurada relationship\u003c\/i\u003e makes use of empirical relationships between intrinsic viscosity and molar mass, specific to each polymer and solvent, to estimate molar mass from SEC-IV measurements. Of course, the best way to determine MHS coefficients is to measure them using SEC-MALS-IV and ASTRA\u003csup\u003e™\u003c\/sup\u003e!\u003c\/p\u003e\n\u003cp\u003eGo to the \u003ca href=\"https:\/\/www.wyatt.com\/products\/instruments\/viscostar-online-differential-viscometer.html#viscostar-3\"\u003e\u003cb\u003eAdvanced Technology\u003c\/b\u003e\u003c\/a\u003e tab to learn more about the unique features of the ViscoStar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column one-second\"\u003e\n\u003cfigure style=\"margin-left: 15px; text-align: center;\"\u003e\u003cimg alt=\"Viscostar pump pulse \n        suppression\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/05\/pump-pulse-suppression-with-inset.jpg\" title=\"Viscostar pump pulse suppression\"\u003e\n\u003cp align=\"left\" style=\"color:#075c97;font-size:14px;padding-left:30px\"\u003ePatented pulse compensation technology in the ViscoStar eliminates pump fluctuations. At the hardware level, the bridge is impedance matched for dynamic balance, greatly reducing the effect of pump pulses. An additional layer of software filtering eliminates residual pump pulses.\u003c\/p\u003e\n\u003c\/figure\u003e\n\u003cfigure style=\"margin-left: 15px; text-align: center;\"\u003e\u003cimg alt=\"ViscoStar measurements of PLGA and carboxymethyl cellulose\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/05\/cmc-plga-intrinsic-viscosity-graphs.jpg\" title=\"ViscoStar measurements of PLGA and carboxymethyl cellulose\"\u003e\n\u003cp align=\"left\" style=\"color:#075c97;font-size:14px;padding-left:30px\"\u003eThe ViscoStar provides the highest available dynamic range and sensitivity in online viscometry. This graph shows the intrinsic viscosities of 1) poly(lactic co-glycolic acid), or PLGA, in THF and 2) carboxymethyl cellulose, or CMC, in aqueous mobile phase, both measured with a ViscoStar and Optilab, spanning a range from tens to thousands of mL\/g. The same instruments readily measure intrinsic viscosity values in the      low single digits with excellent signal-to-noise, even at very low concentrations.\n\t\t\u003c\/p\u003e\u003c\/figure\u003e\n\u003cfigure style=\"margin-left: 15px; text-align: center;\"\u003e\u003cimg alt=\"viscostar-measurement of protein size as hydrodynamic radius\" src=\"https:\/\/www.wyatt.com\/wp-content\/uploads\/2019\/05\/v3-protein-rh-measurements.jpg\" title=\"Viscometric analysis of protein size\"\u003e\n\u003cp align=\"left\" style=\"color:#075c97;font-size:14px;padding-left:30px\"\u003eThree IgG proteins with similar MWs eluted at different elution volumes. To understand their different elution properties, online DLS is typically used to measure the hydrodynamic radius, \u003ci\u003eR\u003c\/i\u003e\u003csub\u003eh\u003c\/sub\u003e, of a protein. However, online DLS did not provide reliable insights, in this case due to the relatively high experimental uncertainty of the DLS. The precise Rh values obtained with a MALS detector and the ViscoStar III, on the other hand, clearly revealed the causes. IgG B eluted later than IgG A due to its more compact structure; IgG C had a slight interaction with the SEC column.\u003c\/p\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity (minimum detectable sample)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 μg of 100 kDa polystyrene in THF at 1 mL\/min, under typical GPC conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.05 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.9 kPa, protected against overpressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDynamic range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e135,000:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLinearity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential pressure drift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 2.5 Pa\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapillary bridge autobalance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal, leak-free mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample shear rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5000 Hz with water at 1 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. flow rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAqueous: 1.5 mL\/min; THF: 3 mL\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDelay volume options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16.2, 10.8 or 5.4 mL, with additional factory-installed option for 32.4 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. permissible pressure inlet to outlet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e690 kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWetted Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel, PTFE, zirconium silicate, Kalrez, Inconel, 26-1 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ºC to 70 ºC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.005°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 ºC to 40 ºC, 20% to 70% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 bits @ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject contact closure, Alarm In, Analog In: 2 differential inputs, 18 bits resolution, range -10 V to +10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoinject Retransmit, Alarm Out, Recycle Out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEthernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\" (178 mm), high-resolution, multi-touch display for viewing\/setting signals, instrument settings and diagnostics.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e58 cm (L) x 36 cm (W) x 18 cm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wyatt.com\/products\/viscostar-brochure-request.html\" target=\"_blank\"\u003eBrochure\u003c\/a\u003e\u003c\/p\u003e","brand":"Wyatt Technology","offers":[{"title":"Standard","offer_id":46488398954575,"sku":"WV4","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"Standard Delay Column","offer_id":46488398987343,"sku":"WV4-01","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/ViscoStar-Hero-Bright-Screen-9-19.jpg?v=1787675386"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/collections\/Optilab-Hero-Neon9-20-19_9309252a-3f5c-4b8b-b3f8-f78b86962b96.jpg?v=1790860122","url":"https:\/\/www.danyel.co.il\/collections\/refractive-index-detectors.oembed","provider":"danyel biotech","version":"1.0","type":"link"}