Metazachlor ethane sulfonic acid, 100µg/ml in Acetonitrile, 1ml

5-Methyl-1H-benzotriazole, 100mg

3,3',4,4',5,5'-Hexabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Clopyralid, 100 µg/ml, Acetonitrile, 5ml