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Aldicarb sulfoxide Solution in Acetonitrile
噻唑磷
氯甲硝咪唑溶液, 100ppm
六氯苯 1000mg 标准品
n-Perfluoropentanoic acid
Cu (1.0 mm foil) 标准品
正四十烷标准品
Imazamox Solution 100ug/ml in tert-Butylmethyl ether
Isoproturon Solution 100ug/ml in Acetonitrile
育畜磷