PAL ITEX DHS
ITEX Dynamic Headspace - Rapid and efficient enrichment of volatile and semi-volatile
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As an alternative to purge and trap (P&T) thermal desorption, in-tube extraction (ITEX) dynamic headspace offers excellent sensitivity for the analysis of volatiles and semi-volatile organics in solid, liquid and gas samples, without the cost and complexity of classical P&T systems.
ITEX dynamic headspace uses a gas-tight syringe to collect the headspace and a microtrap inside the syringe needle to efficiently extract and concentrate volatile and semi-volatile compounds. This is a syringe-only concept with no sample loops, transfer lines, or switching valves that could be contaminated. The five stages of the ITEX procedure are shown below.
Brochures
ITEX Dynamic Headspace: Powerful sample enrichment for GC
In this product brochure, discover the ITEX (In-tube extraction) Dynamic Headspace Tool designed for rapid and efficient enrichment of volatile and semi-volatile compounds from solid, liquid, and gaseous samples. Explore the ITEX Dynamic Headspace extraction procedure and its applications in sample extraction of food and environmental samples.
Analysis of VOCs in water using the TriPlus RSH ITEX system
Volatile organic compounds (VOCs) are a diverse group of carbon-based chemicals that easily evaporate into the air at room temperature, posing potential health risks and contributing to air pollution and the formation of ground-level ozone and smog. CTC Analytics presents a method for quantifying VOCs in drinking water using the TriPlus™ RSH ITEX system coupled with a Thermo Scientific™ ISQ™ 7000 MS system and a Thermo Scientific™ TRACE™ 1310 Gas Chromatograph. The goal being to demonstrate a routine analytical method with evaluated linearity and detection limits.
Analysis of volatile organic compounds in durian by static headspace and ITEX-DHS GC-MS
In this application note, the volatile compounds of Durian were extracted with two different headspace modes, static and dynamic headspace modes under relatively mild heat. Static headspace is mostly used to analyze the most abundant volatile compounds. While, dynamic headspace, due to its ability to concentrate analytes, can detect compounds even in the parts per billion (ppb) range down to the odor thresholds. Both headspace methods work fully automated and solventless, which is a big advantage in reducing manual labor-intensive work and provides a green analytical method to laboratories.
