FID GC Articles
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Ultra-Sensitive Coal Tar Distillate Analysis by GC-PID
The distillation of Naphthenes and Coal Tars results in a complex array polynuclear aromatics, or which many do not show up in an analysis by GC-TCD or FID because they are at trace levels in the sample. In some cases these trace products are valuable and in sufficient quantity to warrant recovery. In order to discover hidden profits like this a GC equipped with a photo-ionization ...
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Study of Residual Solvents in Various Matrices by Static Headspace
Abstract United States Pharmacopeia (USP) chapter is a widely used method for identifying and quantifying Organic Volatile Impurities (OVI) used in the production of pharmaceuticals. Many of these OVIs, also known as residual solvents, are known or potential carcinogens and must be monitored due to the risks they pose to consumers and the environment. For this study, VOC data will be presented ...
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How does an FID work?
An FID, or Flame Ionization Detector, is the most common detector paired with gas chromatography instruments for analytical applications. But how does and FID work? An FID uses a flame to ionize organic compounds containing carbon. Following separation of the sample in the GC column, each analyte passes through a flame, fuelled by hydrogen and zero air, which ionises the carbon atoms. ...
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Using a hydrogen generator for GC-FID in FLNG facilities
Gas-fired electrical power is now a growing energy market in Japan, following the 2011 Tahoku earthquake and tsunami which led to the Daiichi nuclear disaster. Having caused tremendous damage to local communities and farm produce, a number of private companies have been tapping into different energy supply methods, leading to a surge in gas-fired electrical power generation in Japan. This has ...
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Developpement of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites
Significance of the Research: Ambient air is polluted by many VOCs coming from Petrochemical Industry. PAMS, Oxygenated or Halogenated VOCs can be found in many ranges of concentration between background and site fence line. These compounds are precursors of ozone and Industrial bodies need to identify them to be in compliance with the authorized limits and to improve their process. Objectives: ...
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What is in e-cig liquid?
In a recent white paper, Restek corporation identified a simple methodology for the simple comparison of e-cigarette liquids using GC-MS and GC-FID. E-cigarettes have been a fairly recent phenomenon. An alternative to smoking tobacco, e-cigarettes work by vaporizing a liquid which is then inhaled by the user. Despite only being available to the market for a few years, e-cigarettes are thought to ...
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Development of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites
Ambient air is polluted by many semi-Volatile and Volatile Organic Compounds (SVOCs and VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from pg/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform ...
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Development of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites
Ambient air is polluted by many semi-Volatile and Volatile Organic Compounds (SVOCs and VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from pg/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform ...
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Development of on-line and field dual TD GC – MS for automatic VOC monitoring on petrochemical sites
Ambient air is polluted by many semi-Volatile and Volatile Organic Compounds (SVOCs and VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from pg/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform ...
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National Center for Quality Testing of Alcoholic Beverages - Case Study
Name: Sergiu Rusu Job Title: Leading engineer of instrumental analysis sector Company: National Center for Quality Testing of Alcoholic Beverages Sergiu with his Precision Hydrogen Trace 500 Sergiu Rusu and his colleagues at the National Center for Quality Testing of Alcoholic Beverages are responsible for ensuring alcohol produced in Moldova is quality tested and is safe for sale within ...
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Analysis and interpretation of the monitoring data for C2?C11 hydrocarbons in the atmosphere of a rural Portuguese site
This paper focuses the application of a measurement technique for determining atmospheric C2?C6 hydrocarbons after canister sampling and analysis by gas chromatography/flame ionisation detection (GC/FID), as well of an adsorption-sampling technique for C6?C11 compounds and GC/FID analysis after thermal desorption and cryogenic concentration. Tens of samples collected at Giesta, a rural area ...
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Determination of Total Petroleum Hydrocarbons in Soil, Sediment, and Waste Samples using the SpeedExtractor E-916
Total petroleum hydrocarbons (TPH) are a family of several hundred chemical compounds made from crude oil. TPH are found in soils and water. Exposure to TPH can affect human health and, therefore many laboratories around the world are analyzing TPH levels in the environment. This application note describes the extraction of TPH from soil, sediment, and waste samples using the SpeedExtractor ...
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An Alternative Method to RSK 175 using a Purge and Trap Concentrator and GC/FID
Abstract With the growing price of oil, many alternative energy sources are being explored. Natural gas prices are actually decreasing, in large part to the use of hydraulic fracturing in areas like the Marcellus Shale in Pennsylvania. Due to increased concern over the hydrofracturing process and the release of methane and other chemicals into the local drinking water, a need has developed for ...
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Gasoline Range Organics (GRO) by Headspace/GC/FID
Abstract Recent oil spills in the Gulf of Mexico and the Great Barrier Reef have renewed interest in the rapid analysis of crude oil byproducts in aqueous and solid samples including sand and commercial fishing products. One of the crude oil constituents, gasoline range organics (GRO) is currently determined by either EPA Method 8015C1 or Wisconsin’s modified GRO2. A Teledyne Tekmar HT3 ...
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Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air monitoring
Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, T014 and T015 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...
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Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air monitoring
Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, TO14 and TO15 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...
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All in One Unit for GC Applications
Leman Instruments is a leading European company, specialised in standard products, OEMs and in custom designed realisations involving high purity H2, N2, zero air, combined solutions for FIDs, GCs, purge air generators, CH4 & CO2 scrubbers, N2 and multigas for LCMS with high level of communications involving Ethernet, USB, RS 485 and possibility of AK protocol integration. A recent Leman ...
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Alternative Methods to RSK 175 Using Purge and Trap Concentration and Automated Headspace for the Analysis of Dissolved Gases in Drinking Water
Abstract With the growing price of oil, many alternative energy sources are being explored. Natural gas prices are actually decreasing, in large part to the use of hydraulic fracturing in areas like the Marcellus Shale in Pennsylvania. Due to increased concern over the hydraulic fracturing process and the release of methane and other chemicals into the local drinking water, a need has developed ...
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Development of on-line and field dual TD-GC-FID/MS for automatic and continuous ambient air and odor monitoring
Ambient air is polluted by many Volatile Organic Compounds (VOCs) coming from anthropogenic and natural sources. VOCs from PAMS, T014 and T015 lists can be measured in many ranges of concentration, from ng/m3 up to mg/m3 depending on the location of the measurements. Due to the large number of molecules, the complete separation of all compounds is difficult to perform using chromatographic ...
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An Alternative Method to RSK 175 using a Purge and Trap Concentrator and GC/FID
Abstract With the growing price of oil, many alternative energy sources are being explored. Natural gas prices are actually decreasing, in large part to the use of hydraulic fracturing in areas like the Marcellus Shale in Pennsylvania. Due to increased concern over the hydrofracturing process and the release of methane and other chemicals into the local drinking water, a need has developed for ...
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