ARABLAB Special Edition March 2019
2Pages

Le Bulletin ARABLAB Special Edition March 2019 Chromatotec®’s on-line dual TD-GC-FID/MS for automatic and continuous VOC monitoring in ambient and industrial air Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. Due to the large number of these molecules, there is a need to combine their separation and quantification by Gas Chromatography (GC) with Flame Ionization Detection (FID) and their individual identification by Mass Spectrometry (MS). With this aim, Chromatotec® has developed a turnkey solution which allows the automatic quantification and identification of VOCs: the airmoSCAN XPERT. It is a combination of two robust instruments: a dual GC-FID for the monitoring of C2 to C16 compounds (airmoVOC expert) and a process Quadrupole MS. The instrument allows the monitoring of up to 123 VOCs at ppt, ppb, ppm and % levels in only 30 minutes. Thanks to its many advantages (easy to use, fully automatic, intrinsically linear, precise and very stable system with data validation) this solution has been implemented in fixed and mobile laboratories for urban and industrial field analysis all over the world. Among its main industrial applications are those that require very high sensitivity, such as the air analysis in clean air rooms with airmoTWA (including a multiplexer to analyze up to 16 streams). ARABLAB 2019 Dubai, UAE 12-14 March 2019 AIR QUALITY MEASUREMENT METHODS ANDTECffROLOGY APRIL 2-4, "20 19 • DURHAM, NC A&WMA Air Quality Measurement Methods and Technology Conference Durham, USA 2-4 April 2019 ISA Calgary Show Calgary, USA 9-10 April 2019 Volatile and Semi Volatile Hydrocarbons measurement in ambient air near industrial area Volatile and Semi Volatile Hydrocarbons are recognized as a toxic group of organic compounds (e.g. Benzene, Phenol, Naphthalene...) with documented carcinogenic, mutagenic and teratogenic properties. These compounds can be organized in two families, the aromatic and the aliphatic hydrocarbons, which have different impact on people's safety, odor and environment. They are produced naturally by wood fire, volcanoes and human activities such as coal, refineries and gasoline combustion. They are particularly prevalent in urban and industrial environments. In several applications, such as refinery site depollution, the ground is moved and the compounds are emitted at different concentrations, leading to odor and safety issues. Because of their toxicity, the emission of these compounds into urban and workplace air have been limited at very low levels by regulations. Therefore, there is an increasing need for continuously and accurately monitor the molecules that are emitted. To meet these needs, Chromatotec® has developed a specific instrument dedicated to the measurement of Hydrocarbons C6 to C16 (including some Poly Aromatic Hydrocarbons) with a sensitivity in the range of low ng/m3. The instrument is designed to decrease the risk of interference caused by other molecules that may be present in the sample. A specific internal calibration system is used to validate the data and to ensure a good stability of the analytical solution. This all in one solution includes gas generators and sampling pump to make it completely autonomous. Vistachrom software is used for data display and treatment. Results are presented as aromatic and aliphatic hydrocarbons for an easier data analysis. In addition, it is also possible to provide results as sum of hydrocarbons. This flexibility in the software becomes of great help for the user during the phase of data study or to create reports.

Chromatotec®, specialist in the manufacturing of process gas analyzers for online monitoring, is now entering the world of liquid sample analysis through the development of a simplified enhanced liquid sampling system (XXvalveLPG) specifically designed to extract representative samples from the liquid phase. The extracted liquid sample is vaporized and injected in continuous mode into the column of the auto-GC analyzer with speciation of more than 16 sulfur compounds or 123 Volatile Organic Compounds (VOCs) according to the configuration type. Considering sulfur compounds approach, H2S,...