By Anonymous on Friday, December 5, 2003 - 02:45 am:
Can anyone help?
I know that this technique is in its infancy but does anyone use it for quality control of essential oils / flavours routinely.
If so, what do you think of it compared to GC-MS or GC-FID of essential oils?
Do you use TOF-MS or FID detection on the 2nd column?
Do you use heartcutting or "comprehensive" MDGC
Thanks in advance for your thoughts
By Joel R. TerMaat on Friday, March 19, 2004 - 12:21 pm:
There are many research labs that use GC x GC for analysis of essential oils/flavors.
GC x GC has far superior resolution capability over other GC techniques.
Both TOF-MS or FID can be used in GC x GC, as well as many other "fast" detectors.
Here are some literature references that you may be interested in:
M. Adahchour, J. Beens, R. Vreuls. “Application of solid-phase micro-extraction and comprehensive two-dimensional gas chromatography (GC x GC) for flavour analysis.”
Chromatographia 55: 361-367(2002).
R. Shellie, L. Mondello, P. Marriott. “Characterization of lavender essential oils by using gas chromatography-mass spectrometry with correlation of linear retention indices and comparison with comprehensive two-dimensional gas chromatography.”
J. Chromatogr. A. 970: 225-234(2002).
R. Shellie , P. Marriot , C. Cornwell. “Application of comprehensive two-dimensional gas chromatography (GC x GC) to the enantioselective analysis of essentials oils.”
J. Sep. Sci. 24: 823 - 830(2001).
By dlorenzo on Monday, April 12, 2004 - 10:08 am:
I've used this thechnique for routine analysis of Mentha oils, to determine possible adulteration with other mentha species.
Also, we use this technique for analysis of lemon oil, as an additional parameter.
Mainly our work is about research on many oils but not as routine. We establish the enantiomeric ratios as other characterization tool.
Feel free to contact us if you have questions about it.
Best regards