Endosulfan (alpha and beta), 100 ng/µl, 1ml

Multi-Element Calibration Standard-4

Thiamethoxam, 100 µg/ml, Acetonitrile, 5ml

2,2',3,4,4',5,5'-Heptachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane