Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane

Atrazine-desisopropyl-2-hydroxy, 100 µg/ml, Metha

Benthiavalicarb-isopropyl, 100 µg/ml, Acetonitril

Ethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1678-91-7