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Gas chromatography ‐ isotope ratio mass spectrometry measurements of some carboxylic esters from different apple varieties
Author(s) -
Karl Volker,
Dietrich Armin,
Mosandl Armin
Publication year - 1994
Publication title -
phytochemical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 72
eISSN - 1099-1565
pISSN - 0958-0344
DOI - 10.1002/pca.2800050109
Subject(s) - chemistry , isotope ratio mass spectrometry , chromatography , mass spectrometry , gas chromatography , isotope , gas chromatography–mass spectrometry , capillary gas chromatography , stable isotope ratio , physics , quantum mechanics
Abstract The δ 13 C PDB ‐values of some carboxylic esters from apple flavours have been determined by capillary gas chromatography, on‐line coupled with isotope ratio mass‐spectrometry (GC‐IRMS) and compared with the isotopic ratios of some commercially available samples. For the first time, the chirospecific measurement of the isotopic ratios of 2‐methylbutanoates is described. Enantioselective capillary gas chromatography (enantio‐GC), GC‐IRMS as well as enantio‐GC‐IRMS are demonstrated as sophisticated methods in monitoring the authenticity of natural flavour compounds.