Intramolecular 13C/12C isotope ratios of acetic acid of biological and synthetic origin
✍ Scribed by Erich R. Schmid; Helmut Grundmann; Ingrid Fogy; Wolfgang Papesch; Dieter Rank
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 458 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1076-5174
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## Abstract On‐line gas chromatography‐combustion‐isotope ratio mass spectrometry (GC‐C‐IRMS) is commonly used to measure isotopic ratios at natural abundance as well as for tracer studies in nutritional and medical research. However, high‐precision ^13^C isotopic enrichment can also be measured by
## We present the analysis of the stable carbon isotope compositions of 14 individual N-pivaloyl-isopropyl (NPP) amino acid esters by gas chromatography-combustion isotope ratio mass spectrometry (GC-C-IRMS). The mean reproducibility of derivatization procedure and GC-C-IRMS analysis was 0.45‰ (ra