Native PCB Congener Solution/Mixture, 10µg/ml in Nonane, 1,2ml

4,4'-DDT 13C12, 100µg/mL in Acetone, 1ml

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-hexane sulfonate (4:2), 50µg/ml in MeOH, 1,2ml

Di(ethylene glycol)butyl ether