Toxaphene Parlar-No. 50, 1µg/mL in Cyclohexane, 1ml

Sodium p-n-dodecylbenzenesulfonate, 100µg/mL in MeOH, 1ml

2-Bromodiphenyl ether, 1.2ml x 50ug/ml, nonane

Atrazine, 100µg/mL in Acetonitrile, 1ml