Chirospecific flavor analysis by means of enantioselective gas chromatography, coupled on‐line with isotope ratio mass spectrometry

Authenticity Assessment of γ- and δ-Decalactone fromPrunusFruits by Gas Chromatography Combustion/Pyrolysis Isotope Ratio Mass Spectrometry (GC-C/P-IRMS)

“…Samples of 1 declared to be “natural” exhibited ranges from −28.1‰ to −29.2‰ and −192‰ to −286‰ for δ 13 C V - PDB and δ 2 H V - SMOW , respectively. The measured δ 13 C V - PDB data correspond to that given in the literature; published data ( n = 10) range from −24.4‰ to −30.2‰ for synthetic 1 ( 12 , − . For biotechnologically produced 1 , δ 13 C V - PDB data from literature range from −30.1‰ to −31.2‰ ( n = 4) ( 29 , 30 , 33 ).…”

“…The measured δ 13 C V-PDB data correspond to that given in the literature; published data (n ) 10) range from -24.4‰ to -30.2‰ for synthetic 1 (12,(29)(30)(31)(32). For biotechnologically produced 1, δ 13 C V-PDB data from literature range from -30.1‰ to -31.2‰ (n ) 4) (29,30,33). There is no previous information available on δ 2 H V-SMOW values of 1.…”

Quantitative analysis of γ‐ and δ‐lactones in wines using gas chromatography with selective tandem mass spectrometric detection

“…Monitoring of lactones in wine is also important for authorities, as they may be indicators of aroma adulteration . In some cases, enantioselective analysis via multidimensional gas chromatography (MDGC) and even (enantioselective) stable isotope ratio mass spectrometry (IRMS) are additional tools to answer adulteration issues, but reliable quantitative data is a prerequisite for all investigations with respect to adulteration.…”

Compound-specific isotope analysis. Application to archaelogy, biomedical sciences, biosynthesis, environment, extraterrestrial chemistry, food science, forensic science, humic substances, microbiology, organic geochemistry, soil science and sport

“…Indeed, cheap, synthetic, petroleum‐derived compounds usually have different isotope values than their costly, natural counterparts. Several studies highlight the use of both chirospecific analysis and 13 C/ 12 C determination by CG‐C‐IRMS for the authentication of fruit lactones 11,. 116–119 Schmidt reported 13 C/ 12 C values of various synthetic and natural compounds such as carvone, almond benzaldehyde, and cinnamon aldehyde 120.…”

“…1) has allowed the analysis of individual substances occurring at trace levels in very complex mixtures. It has thus opened new research fields in various scientific areas6–8 such as organic geochemistry,9,, 10 food science,11 medicine,12 nutrition,13 pharmacy,14 sport,15 phytochemistry,16,, 17 archaeology,18 soil science,19,, 20 environment,21–25 humic substances,26–28 extraterrestrial science29 and forensic science 30,. 31 15 N/ 14 N and 2 H/ 1 H ratios of individual molecules have also been measured using GC coupled to IRMS 32–35.…”