Fensulfothion-oxon, 100µg/mL in Cyclohexane, 1ml

Metazachlor ethane sulfonic acid, 100µg/ml in Acetonitrile, 1ml

Metals Mix #1

3,3',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane