ITEX DHS Traps
ITEX DHS Traps

ITEX DHS Traps

The dynamic headspace analysis (DHS) with the ITEX DHS tool extends the range of analytes to those with lower vapor pressure and higher boiling points.

ITEX DHS Trap

ITEX Trap Selection Guide

  • Tenax TA: Volatile and semivolatile compounds, temperature limit of 350 °C

  • Carbopack: Hydrophobic properties minimized sample displacement by water

  • Carbosieve/Carboxen: For very volatile compounds, e.g. Vinylchloride, Freon compounds

 

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Analysis of flavors, pesticides, and biomarkers directly from complex food matrix using the automated Vacuum In-Tube Extraction (V-ITEX)
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Analysis of flavors, pesticides, and biomarkers directly from complex food matrix using the automated Vacuum In-Tube Extraction (V-ITEX)

Extraction of volatile compounds is a widely used approach for analysis of foods and beverages.  By the nature of gas phase sampling, the limiting factor for polar analytes are given by low vapor pressure or higher boiling points of semi-volatile compounds. These limitations can be overcome by sampling at decreased pressure levels using vacuum conditions. This has been shown in several publications using vacuum sampling techniques. In this study, a fully automated approach of Vacuum In-Tube Extraction (V-ITEX) is presented, a simple and fully automated technique using PAL system autosamplers. The application examples include flavors, fragrances, off-flavors, pesticides and biomarkers by extractions directly from the food sample matrix, such as Honey, Bee Wax, Cheese, Onions, Blood and Urine.  

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Pascal Fuchsmann, Head of Flavor Analytics Agroscope

Stefan Cretnik, Product Manager CTC Analytics AG

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Demonstration of a routine analytical method for the quantitation of volatile organic compounds in drinking water, using the
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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.

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The analysis of volatile organic compounds (VOCs) is a faster approach to identify the honey’s origin than traditional methods, which is important for the quality control of honeys. In-tube extraction dynamic headspace (ITEX-DHS) is a fully automated microextraction technique, in which the enrichment of analytes takes place by repeated aspiring and dispensing of the sample headspace through a sorbent trap

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Other countries

Your country is not listed? Please contact:

CTC Analytics AG
Industriestrasse 20
CH-4222 Zwingen
Switzerland

T + 41 61 765 81 00

E infopalsystem.com

Other countries

Your country is not listed? Please contact:

CTC Analytics AG
Industriestrasse 20
CH-4222 Zwingen
Switzerland

T + 41 61 765 81 00

E infopalsystem.com

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