Pentachlorophenol, 100 µg/ml, Methanol, 1ml

3,4-Dichloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

EDDP perchlorate,100 µg/mL (as pyrrolinium) ,MeOH,1mL,

Benzo[a]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 63466-71-7