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Picene (purified by sublimation)
First Standard® 嗪草酮 DADK
胡枝子(细梗胡枝子)
Dibenzo(a,j)anthracene,10ng/ul 标准品
KCl 标准溶液 标准品
Surrogate Standard Mix 13,2000ng/ul 标准品
Clomipramine Hydrochloride
Semi-Volatile Base Neutrals Extractable Mixture #1 - Skinner List 200ug/ml in Methylene chloride
咔唑 标准品
Vaccenin 11 C18:1 cis 标准品