Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml

Fenthion, 10.0 µg/ml, Acetonitrile, 10ml

Cadusafos, 100 µg/ml, Acetonitrile, 5ml

2,2',3,3',4,5,6,6'-Octachlorobiphenyl ,100 µg/mL,isooctane,1mL,