Pethoxamid, 10.0 µg/ml, Acetonitrile, 10ml

2-Amino-6-nitrobenzothiazole, 1000mg

QC Standard 4

1,2,3,6,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene