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Benz[j]aceanthrylene and Benz[e]aceanthrylene(70:30 Mixture)
叔丁醇; 1000mg 标准品
Single 16 EPA-PAH Kit, isooctane-mix conc., See page 137 in the 2008 Catalogue
顺式氰戊菊酯-d7
Indium - In metal, 99.999%, 2% HCl(有证书)
Ecamsule Triethanolamine
恶草酮 Bepure-GBW(E)082895
4-(Trifluoromethyl)aniline-2,3,5,6-d4 标准品
酸浆苦味素 L
53种农药混标(定制,2件套装)