Determination of suspected allergens in non-volatile matrices using PTV injection with automated liner exchange and GC-MS
✍ Scribed by Frank David; Christophe Devos; Daniel Joulain; Alain Chaintreau; Pat Sandra
- Book ID
- 102926429
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 502 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1615-9306
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✦ Synopsis
Determination of suspected allergens in nonvolatile matrices using PTV injection with automated liner exchange and GC-MS A method is described for the analysis of suspected volatile allergens in products containing high molecular weight or non-volatile compounds such as plant extracts, solid and liquid detergents, shampoos, etc. The method is based on dissolution/extraction of the sample followed by direct injection in a programmed temperature vaporizing inlet, the liner of which contains PDMS foam to retain the high molecular weight non-volatile material. The liner is automatically replaced after each injection, by an automated liner exchange device. Analysis is done by GC-MS operated in the retention-time locked mode. The figures of merit are illustrated with the analysis of some real samples.