Atrazine-2-hydroxy, 100 µg/ml, Methanol, 1ml

Fenitrothion, 100 µg/ml, Toluene, 1ml

2,3,3',4,4'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Mecoprop, 100µg/mL in Acetonitrile, 1ml