MA - EPH Matrix Spike

1,2,3,4,6,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

EGDN, 100 µg/ml, Acetonitrile, 1ml

alpha alpha alpha (20R)-Cholestane, 1000µg/mL in Isooctane, 1ml