Paraoxon-ethyl, 100 µg/ml, Cyclohexane, 5ml

Ethanol standard in water,4.0g/L,water, 3mL

4-Bromo-2,3,5,6-tetraachloroanisole, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no.

3ß(H),17ß(H),21ß(H)-3-Hydroxyhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.