GC-IRMSGas Chromatography-Isotope Ratio Monitoring Mass Spectrometry
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Subject of delivery is gc-irms isotopic mass spectrometer with gas chromatograph for the faculty of science of the university of south bohemia.
The stable carbon isotope ratios were measured on a gas chromatography-isotope ratio mass spectrometry system (GC-IRMS, isotope ratio mass spectrometer interfaced with an Agilent 6890A gas chromatograph).
The carboxen/polydimethylsiloxane (CAR/PDMS) fiber was first used in 2014 to measure the carbon isotope composition of volatile light hydrocarbons in natural gas by combining SPME and GC-IRMS [32].
In addition, significant advances in the measurement of stable isotopes include the use of purge and trap systems to concentrate contaminants and to lower detection limits on the GC-IRMS from the ppm to the ppb concentration range and the development of hydrogen isotope analysis for chlorinated hydrocarbons as an additional line of evidence of biodegradation.