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First Standard® 乙腈中百菌清溶液,100μg/mL
丙酮中速克灵(腐霉利)溶液标准样品
醋酸甲羟孕酮 标准品
1-(2-Hydroxyphenyl)ethanone? (2-Hydroxyacetophenone)
卡巴氧 标准品
Metals in Urban Particulates - Water Treatment Waste 标准品
2,2',3,4,4',6-Hexachlorobiphenyl 标准品
(1R,2S,3R,5S)-5-Acetyloxy-2-hydroxymethyl-3-tetrahydropyranyloxy-α-(phenylseleno)cyclopentaneheptan
PUNYW25852178 Digallic Acid (Mixture of para and meta-Isomers)
甲醇中呋喃唑酮代谢物(AOZ)溶液标准物质 农科院质标所