Journal
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Volume 147, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2021.116515
Keywords
Stable Isotope Ratio Analysis; High -Performance Liquid Chromatography; Paleo archaeology; Nutrition; Trophic; Pediatrics; Soil science; Food authenticity
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Accurate analysis of stable isotopes is increasingly important in various scientific fields. Liquid chromatography coupled with isotope ratio mass spectrometry (LC-IRMS) has expanded the applications of elemental analyzer (EA) and gas chromatography combustion (GC-C)-IRMS techniques. The new liquid chromatography interface coupled with IRMS allows compound-specific d13C analysis of non-volatile, water-soluble compounds from complex mixtures.
An accurate analysis of the composition of stable isotopes is today an increasingly important requirement in various fields of science (from the environmental to the medical field). Since 2004, the year of its introduction on the market, Liquid Chromatography coupled with Isotope Ratio Mass Spectrometry (LC-IRMS) has expanded the applications possible with the most famous and widespread Elemental Analyzer (EA) and Gas Chromatography Combustion (GC-C)-IRMS techniques. The new liquid chromatography interface coupled with IRMS opened to new application areas, in particular by enabling compound-specific d13C analysis of non-volatile, water-soluble compounds from complex mixtures. The advantages of the technique include the possibility of performing a compound-specific analysis without altering isotopic signatures by derivatization. Applications in paleoarchaeology, nutrition and trophic, pediatrics, soil science and food authenticity are examined here by reporting on the progress and technical constraints. (c) 2022 Elsevier B.V. All rights reserved.
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