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3-己炔-2-醇
CD-5气相毛细管色谱柱
甲醇中磺胺甲基异恶唑溶液标准物质
排斥极
4-甲基苯乙烯
SEAL, PTFE-PROTECTED, GL 14
ERLENMEYER-FLASKS, 250 ML, ST 24/29, 85 X 140 MM ECONOMY PACK = 10 PCS
气相色谱柱,TRACE TR-WAX 气相柱, 60m, 0.53mmID, 1μm 液膜厚度
EVAPORATING DISHES, WATCH GLASS SHAPE, THIN GLASS, FIRE-POLISHED RIM, DURAN GLASS 50 MM, PACK = 10
草酸钾,一水 AR(沪试)