Prosulfocarb, 100µg/ml in MeOH, 1ml

Dibenzo-p-dioxin-d8, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 69699-83-8

TFNA, 100 µg/ml, Acetonitrile, 1ml

Citric acid [3% wt]