产品详情
规格:10g
含量:41.85% C, 4.68% H, 16.26% N, 18.58% O, 18.62% S
Acetanilide standard 乙酰苯胺标样
EDTA(乙二胺四乙酸标样)
Chromium (III)-oxide 三氧化铬
Tungsten (VI)-oxide 氧化钨