WS Disinfection By-Products - Cal Check 3

Heneicosanoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2363-71-5

Terbufos-sulfoxide, 100 µg/ml, Acetonitrile, 1ml

Dimethenamid ESA sodium salt, 100µg/ml in Acetonitrile, 1ml