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PE POLYETHYLENE TUBING
HYPERSIL GOLD AQ 1.9UM 20X2.1MM COLUMN
316不锈钢气路管,1m
Tubing, connectors, stopcock FEP for Corning Accelerated One-Step .
5-溴-2-羟基-4-甲基吡啶
FLASKS, W. 2 SIDE NECKS, PARALLEL (DESTILLATION FLASKS), 10 000 ML, CN ST 29/32, SN ST 29/32
广口瓶,聚丙烯;聚丙烯螺旋盖,1000ml容量
7种金属混标(砷,钡,铬,铅,锑,硒)
气相色谱柱,TG-17MS 15m x 0.25mm x 1μm
甲醇中对硝基氯苯溶液标准物质