Initial Check Verif. Standard 4, in 4%HNO3, 100ml

N-Nitrosopyrrolidine-d8, 1000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 1219802-09-1

2,4-Dimethylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 611-01-8

D6-Carbofuran-3-keto, 100 µg/ml, Acetonitrile, 1