{"product_id":"whatman-non-sterile-mixed-cellulose-ester-membranes-0-8-m-7148-002","title":"Whatman™ Non-Sterile Mixed Cellulose Ester Membranes – 0.8 µm","description":"\u003cp\u003eMixed cellulose ester, WME range, circles, gridded\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSterile options available for critical applications.\u003c\/li\u003e\n\u003cli\u003eExcellent contrast for easier particle detection.\u003c\/li\u003e\n\u003cli\u003eGrids are nontoxic and do not inhibit bacterial growth, ensuring sample integrity.\u003c\/li\u003e\n\u003cli\u003eBlack plain and black gridded membranes have a mix of cellulose nitrate and cellulose acetate.\u003c\/li\u003e\n\u003cli\u003eThe membrane offers a high degree of internal surface area for greater adsorption of product.\u003c\/li\u003e\n\u003cli\u003eHigher dirt loading capacity.\u003c\/li\u003e\n\u003cli\u003eBiologically inert with good thermal stability.\u003c\/li\u003e\n\u003cli\u003eNo surfactants to contaminate samples.\u003c\/li\u003e\n\u003cli\u003eUniform microporous structure of membrane gives high flow rates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue. The ME range has a lower cellulose acetate content compared to the WME range of membranes.\u003c\/p\u003e\u003cp\u003eEased counting process\u003c\/p\u003e\u003cp\u003eIn microbiological colony counting procedures, the color contrast between the surface and the colonies facilitates the counting process.\u003c\/p\u003e\u003cp\u003ePlain or gridded\u003c\/p\u003e\u003cp\u003eMany microbiological techniques include colony counting after incubation as the standard method of quantitation. Whatman gridded filters have clearly defined grid lines spaced at 3.1 mm or 5 mm intervals. The special ink used is nontoxic and completely free from bacterial growth inhibitors. Whatman black mixed cellulose esters are available plain for automatic colony counting applications, as well as gridded to assist in manual counting procedures. Black membranes provide contrast between residue or cell colors and the filter without having to counter-stain the membrane.\u003c\/p\u003e\u003cp\u003eSterile filters\u003c\/p\u003e\u003cp\u003eFor those laboratories preferring to use membranes sterilized by autoclaving for microbiological work, Whatman provides black gridded membranes in packs with pads ready for laboratory autoclaving.\u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"White\/black \/ 25 mm","offer_id":45982146199631,"sku":"7148-002","price":747.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/digi-28702-original-png_0d4bd006-b3ab-4751-a97d-37189769e429.png?v=1785958782","url":"https:\/\/www.danyel.co.il\/products\/whatman-non-sterile-mixed-cellulose-ester-membranes-0-8-m-7148-002","provider":"danyel biotech","version":"1.0","type":"link"}