Fenamiphos, 100 µg/ml, Toluene, 1ml

pH 6.0 Standard @ 25°C

Primisulfuron-methyl, 100 µg/ml, Acetonitrile, 5

2,2',4,4',6,6'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane