Methamidophos, 100 µg/ml, Acetonitrile, 5ml

1,1-Dichloro-2,2-bis[4-chloro(13C6)phenyl]ethane, 1.2mL x 100ug/mL, nonane

Triisobutyl phosphate, 100 µg/ml, Methanol, 5ml

Methyl tert-butyl ether