Accession Number:

ADA167875

Title:

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.

Descriptive Note:

Final rept. 1 Apr-31 Oct 85 on Phase 1,

Corporate Author:

JOHNS HOPKINS UNIV SHADY SIDE MD ENVIRONMENTAL SCIENCES GROUP

Report Date:

1985-11-01

Pagination or Media Count:

61.0

Abstract:

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 mgL, 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 mgL for C6Cl6 to 3.15 mgL for C2Cl4 at 22 C. Temperature 12 - 22 C has little effect on solubility. The solubility of the metals in the mixture range from 0.0014mgL for As to 19.2 mgL for Zn at 22 C.

Subject Categories:

  • Organic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE