Bromophos-methyl, 100 µg/ml, Ethyl acetate, 5ml

Sulfadiazine, 100 µg/ml, Methanol, 1ml

Metolcarb, 100 µg/ml, Acetonitrile, 5ml

2',3,4,4',5-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane