Chiral gas chromatography for the determination of 1,2-O-isopropylidene-sn-glycerol stereoisomers

2003 ◽  
Vol 26 (9-10) ◽  
pp. 771-776 ◽  
Author(s):  
Melloney J. Dröge ◽  
Rein Bos ◽  
Herman J. Woerdenbag ◽  
Wim J. Quax
Keyword(s):  
Gas Chromatography ◽  
Chiral Gas Chromatography

scholarly journals Authenticity control of pine sylvestris essential oil by chiral gas chromatographic analysis of α-pinene

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Martina Allenspach ◽  
Claudia Valder ◽  
Daniela Flamm ◽  
Christian Steuer
Keyword(s):  
Gas Chromatography ◽  
Chromatographic Analysis ◽  
Enantiomeric Excess ◽  
Ionization Detector ◽  
Pine Oil ◽  
Flame Ionization ◽  
Enantiomeric Ratio ◽  
Chiral Gas Chromatography

AbstractNumerous terpenes present in essential oils (EOs) display one or more chiral centers. Within the same genus the enantiomeric ratio of these compounds can be different. Thus, the determination of enantiomers is a valuable tool to evaluate authenticity and quality of EOs. In here, the terpene profile of primary and commercial pine EOs was analyzed by conventional and chiral gas chromatography coupled to a flame ionization detector. The enantiomeric excess of ( ±)-α-pinene was determined and significant differences between primary and commercially available EOs were observed. Primary EOs of Pinus sylvestris L. showed a positive enantiomeric excess of (+)-α-pinene whereas commercial EOs labeled as P. sylvestris L. exhibited an enantiomeric excess of (−)-α-pinene. Thus, chiral analysis provides useful information on the authenticity of pine EOs and allows to uncover possible mislabeling, the use of the wrong herbal substance and sources of adulteration in pine oil.

Determination of the Stereochemistry of theN,N-Dimethyl Amino Acid and the α-amino Acid Residue of Peptide Alkaloids by Chiral Gas Chromatography

1996 ◽  
Vol 7 (1) ◽  
pp. 20-23 ◽  
Author(s):  
Ubiratan F. da Silva ◽  
Carmen D. Cardoso ◽  
Nilo Zanatta ◽  
Ademir F. Morel ◽  
Detlef Icheln ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Amino Acid ◽  
Amino Acid Residue ◽  
Chiral Gas Chromatography
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