Dichlofenthion, 100 µg/ml, Toluene, 1ml

Dichlone, 100 µg/ml, Acetonitrile, 5ml

p-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

Fenitrothion, 100 µg/ml, Toluene, 1ml