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A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds
EP23320
Poster Title: A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds
Submitted on 28 Aug 2015
Author(s): Douglas Doster1; Roger Pearson1; Sean Eppel1; Ken Rice1; Tom Flug2; Brian Peat2; Guenter Boehm2
Affiliations: 1Aspen Research Corporation, Maple Grove, MN; 2CTC Analytics, Zwingen, Switzerland
This poster was presented at ASMS 2015
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Poster Information
Abstract: Purpose:
•To demonstrate the new automated PAL ITEX Dynamic Headspace unit is capable of analyzing flavoring compounds.
•Compare the ITEX to other enrichment techniques.
•Automate the analysis of these flavoring compounds using the ITEX.
•Reduce analysts time involved in the analysis.

Methods:
•Analysis of flavoring compounds using a manual purge and trap GC/MS system.
•Analysis of flavoring compounds using automated dynamic headspace.
•Analysis of flavoring compounds using automated headspace and liquid immersion SPME
•Analysis of flavoring compounds using automated ITEX Dynamic Headspace Unit
•PAL RTC robotic sample handler for automated analysis.
•GC/MS analysis using an Agilent 5975C GC-MS

Results:
The automated ITEX Dynamic Headspace unit demonstrated equivalent accuracy and precision when compared to purge and trap and overall was more sensitive than the other enrichment techniques. The ITEX unit allows for automated analysis and optimization of conditions which drastically reduces analyst’s time when compared to performing the experiments manually with the purge and trap without any reduction in sensitivity, accuracy and reproducibility.
Summary: Enrichment techniques are commonly used for the analysis of flavoring compounds in different matrices with GC/MS. Analysis of flavoring compounds is done by purge & trap, SPME or headspace, depending on requirements for sensitivity. The In-Tube Ex¬traction (ITEX) Dynamic Headspace uses a micro trap filled with an adsorbent material to efficiently extract the compounds. Here we evaluate if the ITEX can be used to effectively analyze for these compounds and reduce the analyst’s time involved.Report abuse »
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