Method for isotopic analysis of chlorinated organic compounds

Patent · Thu Dec 31 23:00:00 EST 1998

OSTI ID:872470

Holt, Ben D ^[1]; Sturchio, Neil C ^[2]

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1. Hindsdale, IL
2. Oswego, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5942439
• OSTI ID: 872470
• Country of Publication: United States
• Language: English

Related Subjects

/436/
analysis
analyzed
carbon
chlorinated
chlorinated organic
chlorine
combustion
combustion tube
compounds
cucl
cuo
excess
excess cu
extracted
form
isotope
isotope ratio
isotopic
isotopic analysis
mass
mass spectrometer
method
organic
organic compound
organic compounds
placed
preparing
provides
ratio
reacted
sample
separated
spectrometer
tube
voc
voc sample