Crotoxyphos, 100 µg/ml, Isooctane, 1ml

Aqueous Ethanol Standard (0.8g/l), 10 x 1,2ml

1-Ethenylpyrrolidin-2-one (1-Vinylpyrrolidin-2-one), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 88-12-0

Nicotinic acid, Stock solution system check EN12260, 1000µg/mL, Solvent-water, Unit 75mL, # of units-1, Cas.no. 59-67-6