Dibutyltin dichloride, 1000 µg/ml, Methanol, 5ml

Nitrite (NO2-) as N

Sodium 1H,1H,2H,2H-perfluorodecylphosphate, 50µg/ml in MeOH, 1,2ml

D8-2,4'-DDT, 100µg/ml in Acetone, 1ml