Analytical Methods for Determining the Concentration of Solvent Yellow 33, Solvent Green 3, Synthetic-HC (Hexachloroethane) Smoke Combustion Products and DEGDN (Diethyleneglycol Dinitrate) in Freshwater

Analytical methods were developed for the determination of solvent yellow 33 (2-(2'-quinolinyl)-1,3-indandione), solvent green 3 (1,4-di-p-toluidinoanthraquinone), synthetic-HC (hexachloroethane) smoke combustion products and DEGDN (diethyleneglycol dinitrate) dissolved in freshwater. A reverse-phase high performance liquid chromatographic method was developed to determine levels of solvent yellow 33 (isocratic), solvent green 3 8gradient) and DEGDN (isocratic) using a deionized water: methanol mobile phase. A combined gas chromatographic (electron capture) and atomic absorption spectrophotometric method was developed to measure the chlorinated organic (CCL4, C2,Cl4, C2Cl6) and metal (Al, Zn, Pb, Cd and As) concentrations respectively, dissolved in freshwater from the synthetic-HC smoke combustion products mixture. A pentane extraction procedure was used to extract and concentrate the organics before analysis. Detection limits were determined. The solubility of the two dyes range from 0.09 to 0.17 mg/L, depending on temperature. Both dyes were found to be stable for 48 h, once dissolved in freshwater. Solubility of the organic components of the smoke combustion products mixture range from less than 0.01 mg/L for C6Cl6 to 3.15 mg/L for C2Cl4 at 22 C. Temperature (12 - 22 C) has little effect on solubility. The solubility of the metals in the mixture range from 0.0014mg/L for As to 19.2 mg/L for Zn at 22 C.