Method for isotopic analysis of chlorinated organic compounds

Details Method for isotopic analysis of chlorinated organic compounds Method for isotopic analysis of chlorinated organic compounds

1997-08-28

1999-08-24

Soderquist, Arlen

Chemistry: analytical and immunological testing

Halogen containing

436126, 436173, 436174, 436181, 436183, 436155, 436158, 436177, G01N 3300, G01N 122

Patent

active

059424397

ABSTRACT:
The present invention provides a method for preparing a VOC sample for carbon and chlorine isotope ratio analysis by mass spectrometer. A VOC sample is placed in a combustion tube and reacted with CuO to form CO.sub.2 and CuCl. The CO.sub.2 is then extracted and analyzed for the carbon isotope ratio. The CuCl is separated from the excess CuO and reacted with CH.sub.3 I to form CH.sub.3 Cl, extracted and analyzed for chlorine isotope ratio.

REFERENCES:
"Method for the Conversion of Chlorinated Volatile Organic Compounds to Carbon Dioxide and Methyl Chloride for Isotopic Analysis of Carbon and Chlorine" American Chemical Society National Meeting, Aug. 29, 1996--Ben D. Holt, et al.
"High Temperature Method for Conversion of Chlorinated Organic Compounds to CH3Cl and C02 for Isotopic Analysis of Chlorine and Carbon", Holt, et. al, Abstracts of Papers of the American Chemical Society, v.212, pp. 154, Published Aug. , 29, 1996.
"Conversion of Chlorinated Organic Compounds to Carbon Dioxide and Methyl Chloride for Isotopic Analysis of Carbon and Clorine" Holt, et al, Analytical Chemistry, v.69, pp. 2727-2733. Published Oct. 15, 1997.

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