4-Aminobenzenesulfonic acid, 250mg

Napropamide, 1000µg/ml in MeOH, 1ml

2,2',3,5',6-Pentachlorobiphenyl, 100µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38379-99-6

Cations Mix (K,Na,Mg,Ca) 1000µg/ml in Water, 100ml