trans-Deltamethrin, 100 µg/ml, Acetonitrile, 1ml

Atrazine-desethyl-desisopropyl, 50µg/mL in MeOH, 1ml

EPA Method 533 Native Primary Std (br/l mix), 500ng/ml in MeOH, 1,2ml

1,2,3,4,6,7,8-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene