Mass-Labelled PCB Cleanup/Sampling Standards, 1.2ml, nonane

Chlorpyrifos, 10.0 µg/ml, Ethyl acetate, 10ml

HHCB 10 µg/mL in Isooctane, 1mL

Kojic acid, 100µg/mL, Solvent-dried down, Unit 1mL, # of units-1, Cas.no. 501-30-4