ResourceSeparations
Analytical Trap Comparison for Purge and Trap Analysis using USEPA Method 8260C
11 Aug 2015Purge and trap concentration is a technique that is used for the analysis of Volatile Organic Compounds (VOCs). The analytical trap is responsible for retaining the VOCs during the purge cycle and then releasing them upon heating and transfer to the GC/MS for separation and detection. In this application note, four analytical traps used for purge and trap analysis were compared using automated VOC sample prep systems, including Teledyne Tekmar’s Atomx, an automated VOC sample prep system.
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Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.GC-MS GC-MS (gas chromatography-mass spectrometry) instruments and equipment are used to separate, quantify and identify mixtures of small and volatile compounds, such as polycyclic aromatics, fatty acids and alcohols. Often used in drug detection, forensic investigation and environmental analysis for pesticides and contaminants, GC-MS is a powerful addition to your lab’s analytical capabilities. GC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzers can give greater sensitivity and resolution to your analysis. Find the best GC-MS instruments and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Volatile Organic Compounds (VOCs)Volatile organic compounds (VOCs) are chemicals that have a low boiling point. Some VOCs are harmful to human health, whereas others can be used to determine the shelf-life of foods samples. GC-MSGas Chromatography-Mass Spectrometry (GC-MS) combines the separation power of gas chromatography with the detection capabilities of mass spectrometry, allowing for the analysis of complex mixtures. It is widely used in environmental, forensic, and pharmaceutical analysis. Explore GC-MS systems in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.