EPA Contract Lab Program (CLP) Statement of Work (SOW) OLC03.2 is an analytical method for the detection of low-concentration volatile, semivolatile, and pesticide/Aroclor organics in aqueous samples using deuterated monitoring compounds (DMCs) as sample-by-sample accuracy indicators. Restek supports this method with a convenient VOA MegaMix (with m- and p-xylene isomers at half the concentration of other components), a deuterated monitoring compounds (DMCs) mix, a fortification mix for all compounds requiring calibration at higher concentration, and single-compound solutions of
3,3'-dichlorobenzidine, and 4-chloroaniline.

This fortification mix contains: 4,6-Dinitro-2-methylphenol (Dinitro-o-cresol), 2,4-Dinitrophenol, 2-Nitroaniline, 3-Nitroaniline, 4-Nitroaniline, 4-Nitrophenol, 2,4,5-Trichlorophenol.