产品详情
规格:100g
含量:41.09% C, 5.52% H, 9.58% N, 43.80% O
Sulfanilamide standard磺胺标样
Acetanilide standard 乙酰苯胺标样
Chromium (III)-oxide 三氧化铬
Tungsten (VI)-oxide 氧化钨