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VOC Air Monitoring Technology and its Application to

29 Jul 2014

In this Application Note we summarise developments that allow sorbent-tube-based sampling technology to be used to monitor volatile organic chemicals in contaminated land.

VOC-Mole soil probe

Markes International Ltd

Robust and easy-to-use soil gas sampler. The VOC-Mole is a stainless steel assembly that is inserted into the ground, allowing soil gas to be sampled onto a sorbent tube, for analysis by thermal desorption (TD)–GC–MS.The VOC-Mole is simple to use and easy to transport, and perfect for any analyst wishing to monitor levels of volatile organic compounds in soil.Features: Organic pollutants pass through holes in the hollow tube and are collected on a sorbent tube. Probe can be left in ground for long periods. Compatible with diffusive and pumped sampling. Use of multiple VOC-Moles in a grid arrangement allows the creation of VOC maps. Special cap prevents ingress of water, wildlife and soil debris. Various pack sizes and probe lengths available. Applications: Surveys of industrial, waste and brownfield sites. Screening of organic pollutants over large areas. Pinpointing of leaks from pipelines and industrial facilities.

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Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.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.
VOC Air Monitoring Technology and its Application to