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Vacuum filtration apparatus for HPLC solvent purification particulate analysis bacteriological studies radiochemical determinations quantitative gravimetric analysis and similar applications. Clamp seals filter membrane between flanges on funnel top and funnel stem.Includes funnel top funnel stem/membrane support aluminum clamp stopper (except standard taper units) and filtration flask (where indicated).for replacement parts visit our online glassware catalog at www.sigma-aldrich.com
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Vactrap™ G (Glass) is the ultimate laboratory vacuum trap system nested neatly in a secondary container with a small footprint and incredible stability against tipping adhering to the strictest CDC recommendations for laboratory safety. The PUREGRIP glass media bottle with extra length EZFlow TPE tubing and tangle-free Polypropylene VersaCap ensures a continuous full vacuum rating. A 0.2μm PTFE inline vent filter retains any aerosolized bacteria and protects the house vacuum or pump from waste produced during supernatant removal, chemical separation, and cell or tissue culture media aspiration. Vactrap™ G combines ease-of-use with the highest temperature rating in the industry, 142°C.•40 CFR 264.175 compliant•3.3 Borosilicate Type 1 Glass•Bleach-Compatible•Autoclavable
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MW 235.22 Da, Purity >99%. Spin trap. Longer half-life derivative of DMPO (ab144610). Distinguishes between superoxide-dependent and independent mechanisms that lead to the hydroxyl radical Detects O-, N-, S- and C-centered free radicals in vivo. .