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乙醇中正戊醇溶液标准物质
1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷铂(0)
具活塞接头
90mm细菌培养皿,灭菌,φ90三分格
Hypersil C18色谱柱
加热丝
填充柱 10%DEGS on Chromosorb WAW DMCS 80/100
Silica gel 60 GF254 for thin-layer chromatography
SPECIMEN BOTTLES, NARROW NECK, PE, WITHOUT SCREW-CAP, CAPACITY 500 ML, GL 25
BOTTLES, CONICAL SHOULDER, LD-PE, NARROW NECK, SCREW-CAP GL 25, 250 ML, TRANSPARENT