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Gas Source Isotope Ratio Mass Spectrometry (IRMS)
, 2014 Gas source isotope ratio mass spectrometry is usually referred to as isotope ratio mass spectrometry (IRMS) or stable-isotope ratio mass spectrometry (SIRMS). IRMS is a conventional method for measuring isotope ratios and has benefited from more than 65 years of research and development.
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Isotope ratio mass spectrometry
The Analyst, 2009Isotope Ratio Mass Spectrometry (IRMS) is a specialized technique used to provide information about the geographic, chemical, and biological origins of substances. The ability to determine the source of an organic substance stems from the relative isotopic abundances of the elements which comprise the material.
Zeland, Muccio, Glen P, Jackson
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Rapid Communications in Mass Spectrometry, 1999
Of all the elements, hydrogen has the largest naturally occurring variations in the ratio of its stable isotopes (D/H). It is for this reason that there has been a strong desire to add hydrogen to the list of elements amenable to isotope ratio monitoring gas chromatography/mass spectrometry (irm-GC/MS). In irm-GC/MS the sample is entrained in helium as
Hilkert, A. +3 more
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Of all the elements, hydrogen has the largest naturally occurring variations in the ratio of its stable isotopes (D/H). It is for this reason that there has been a strong desire to add hydrogen to the list of elements amenable to isotope ratio monitoring gas chromatography/mass spectrometry (irm-GC/MS). In irm-GC/MS the sample is entrained in helium as
Hilkert, A. +3 more
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A review on the determination of isotope ratios of boron with mass spectrometry
Mass Spectrometry Reviews, 2016The present review discusses different mass spectrometric techniques—viz, thermal ionization mass spectrometry (TIMS), inductively coupled plasma mass spectrometry (ICPMS), and secondary ion mass spectrometry (SIMS)—used to determine 11B/10B isotope ratio, and concentration of boron required for various applications in earth sciences, marine ...
Suresh Kumar, Aggarwal, Chen-Feng, You
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Forensic isotope ratio mass spectrometry of packaging tapes
The Analyst, 2004Pressure sensitive adhesive tape (brown parcel tape) is employed in a great many criminal activities such as the restraint of individuals during robbery and offences against the person, the enclosure of explosive devices and the packaging and concealment of controlled drugs.
Carter, James F. +5 more
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Forensic applications of isotope ratio mass spectrometry—A review
Forensic Science International, 2006The key role of a forensic scientist is to assist in determining whether a crime has been committed, and if so, assist in the identification of the offender. Many people hold the belief that a particular item can be conclusively linked to a specific person, place or object. Unfortunately, this is often not achievable in forensic science.
Sarah, Benson +3 more
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The Influence of Diet on Isotope Ratio Mass Spectrometry Values
Clinical Journal of Sport Medicine, 2009Athletes have increasingly used testosterone (T) and other endogenous anabolic steroids that cannot be detected by conventional gas chromatography-mass spectrometry. This led to gas chromatography-combustion-isotope ratio mass spectrometry(GC/C/IRMS), which measures the relative amount of 13C in urinary steroids.
Gary, Green +6 more
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Isotope ratio mass spectrometry – history and terminology in brief
Drug Testing and Analysis, 2012The history of isotope ratio mass spectrometry (IRMS) is briefly described. It is shown that the fundamental design of isotope ratio mass spectrometers has not changed since the 1940s. The basic findings concerning the natural variation of isotope abundances even date back to the 1930s.
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Science & Justice
The Forensic Isotope Ratio Mass Spectrometry (FIRMS) Network announce the publication of the Third Edition of the Good Practice Guide for Isotope Ratio Mass Spectrometry. In the third edition, changes include a new chapter on sampling covering method of sampling a population, sampling for homogeneity testing of a material as well as considerations for ...
Philip J.H. Dunn +3 more
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The Forensic Isotope Ratio Mass Spectrometry (FIRMS) Network announce the publication of the Third Edition of the Good Practice Guide for Isotope Ratio Mass Spectrometry. In the third edition, changes include a new chapter on sampling covering method of sampling a population, sampling for homogeneity testing of a material as well as considerations for ...
Philip J.H. Dunn +3 more
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High-precision continuous-flow isotope ratio mass spectrometry
Mass Spectrometry Reviews, 1997Although high-precision isotope determinations are routine in many areas of natural science, the instrument principles for their measurements have remained remarkably unchanged for four decades. The introduction of continuous-flow techniques to isotope ratio mass spectrometry (IRMS) instrumentation has precipitated a rapid expansion in capabilities for
J T, Brenna +3 more
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