Gas chromatography

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Gas chromatography (GC), is a common type of chromatography used in analytic chemistry for separating and analysing compounds that can be vaporized without decomposition. (Wikipedia.org)






Conferences related to Gas chromatography

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2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power


2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions


2019 IEEE 28th Symposium on Fusion Engineering (SOFE)

fusion engineering, physics and materials, plasma heating, vacuum technology, tritium processing, fueling, first walls, blankets and divertors


2019 IEEE Industry Applications Society Annual Meeting

The Annual Meeting is a gathering of experts who work and conduct research in the industrial applications of electrical systems.


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Periodicals related to Gas chromatography

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Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


Computational Biology and Bioinformatics, IEEE/ACM Transactions on

Specific topics of interest include, but are not limited to, sequence analysis, comparison and alignment methods; motif, gene and signal recognition; molecular evolution; phylogenetics and phylogenomics; determination or prediction of the structure of RNA and Protein in two and three dimensions; DNA twisting and folding; gene expression and gene regulatory networks; deduction of metabolic pathways; micro-array design and analysis; proteomics; ...


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electrical Insulation Magazine, IEEE

The magazine covers theory, analysis, design (computer-aided design), and practical implementation of circuits, and the application of circuit theoretic techniques to systems and to signal processing. Content is written for the spectrum of activities from basic scientific theory to industrial applications.


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Most published Xplore authors for Gas chromatography

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Xplore Articles related to Gas chromatography

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Measurement of Residual Solvents in Thiamine Hydrochloride by Static Headspace Gas Chromatography

2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010

A rapid general method for the determination of residual solvents in thiamine was studied. This paper demonstrated static headspace gas chromatography (HS/GC) with either flame ionization detection (FID) or mass spectrometry (MS) for the determination of volatile residual solvents in pharmaceutical products. The analytical method performance characteristics were investigated, including the repeatability, the accuracy and the detection limit of determination. ...


Influence of O/sub 2/ and H/sub 2/O on the spark decomposition of SF/sub 6/ and SF/sub 6/+50% CF/sub 4/ mixtures

Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 1996

The spark decomposition of SF/sub 6/ and SF/sub 6/+ 50% CF/sub 4/ mixtures was studied at a gas pressure of 200 kPa. The sparks were generated between a point and a plane either under 50 Hz AC voltage (0.09 J per spark) or by discharging a capacitor (3.59 J per spark). The authors' attention was only focused on the gaseous ...


Determination of Vapour Pressure of gasoline by double ANN algorithm combined with multidimensional gas chromatography

2011 International Conference on Electric Information and Control Engineering, 2011

In this paper, a double artificial neural network (ANN) algorithm has been established for calculating the Vapour Pressure of gasoline from the results of multidimensional gas chromatography analysis. Multidimensional resolution column was applied to obtain the results of the detailed hydrocarbon analysis of gasoline. The double ANN regression model has been established between the results of the detailed hydrocarbon analysis ...


Determination of Four Volatile Halohydrocarbons in Water by Purge and Trap-Gas Chromatography-Mass

2009 3rd International Conference on Bioinformatics and Biomedical Engineering, 2009

A sensitive and fast analytical method using purge-and-trap (P&T) on-line coupling with gas chromatography was developed for the determination of four trace volatile halohydrocarbons including methylene, chloroform, carbon tetrachloride and trichloroethylene in water. The analytes were purged for 10min from the sample by high purity nitrogen and preconcentrated in the cooled trap at -80 degC . The halohydrocarbons were separated ...


Organotin Concentrations in the Southern Chesapeake Bay

OCEANS '86, 1986

A monitoring program designed to determine the concentrations of tributyltin in waters surrounding marinas in the southern Chesapeake Bay started in January, 1986. In addition, water samples were analyzed from the Elizabeth River to ascertain the tributyltin concentrations in this highly industrialized estuary. The data show that tributyltin concentrations vary considerably over both space and time. Concentrations, an order of ...


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Educational Resources on Gas chromatography

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IEEE-USA E-Books

  • Measurement of Residual Solvents in Thiamine Hydrochloride by Static Headspace Gas Chromatography

    A rapid general method for the determination of residual solvents in thiamine was studied. This paper demonstrated static headspace gas chromatography (HS/GC) with either flame ionization detection (FID) or mass spectrometry (MS) for the determination of volatile residual solvents in pharmaceutical products. The analytical method performance characteristics were investigated, including the repeatability, the accuracy and the detection limit of determination. The results showed that the method had very good sensitivities (detection limits under 9.45 μg/mL) and precision (under 7.35% RSD) for all solvents. The rates of recovery were 98.59%, 95.25%, 103.89% and 99.88% for methanol, ethanol, N, N-dimethyllformamide and ethyl ether, respectively.

  • Influence of O/sub 2/ and H/sub 2/O on the spark decomposition of SF/sub 6/ and SF/sub 6/+50% CF/sub 4/ mixtures

    The spark decomposition of SF/sub 6/ and SF/sub 6/+ 50% CF/sub 4/ mixtures was studied at a gas pressure of 200 kPa. The sparks were generated between a point and a plane either under 50 Hz AC voltage (0.09 J per spark) or by discharging a capacitor (3.59 J per spark). The authors' attention was only focused on the gaseous SF/sub 6/ by-products: SOF/sub 2/+SF/sub 4/, SOF/sub 4/, SO/sub 2/F/sub 2/, S/sub 2/F/sub 10/, S/sub 2/OF/sub 10/, S/sub 2/O/sub 2/F/sub 10/ and S/sub 2/O/sub 3/F/sub 6/ which were assayed by gas chromatography. Their yields were studied varying the cell preparation technique, the metal constituting the plane electrode (aluminum, copper, stainless-steel) and the concentrations of two additives, O/sub 2/ (between 0 and 1%) and H/sub 2/O (between 0 and 0.2%). The cell preparation procedure had a strong effect on the formation of all products except SOF/sub 2/+SF/sub 4/. The aluminum led, whatever the procedure used, to the highest levels of products. With SF/sub 6/ as well as with the SF/sub 6/+50% CF/sub 4/ mixtures and whatever the spark energy, an increase of the oxygen content led to a decrease of SOF/sub 2/+SF/sub 4/ and S/sub 2/F/sub 10/ production rates and to an increase of that of SOF/sub 4/+SO/sub 2/F/sub 2/. Moreover, an increase of the H/sub 2/O content induced a lowering of the S/sub 2/F/sub 10/ production rate and an increase of those of SOF/sub 2/+SF/sub 4/ and SOF/sub 4/+SO/sub 2/F/sub 2/. With the SF/sub 6/+50% CF/sub 4/ mixture the by-products production rates were lower (10 to 50% depending on the by-product considered and on the O/sub 2/ or H/sub 2/O concentration) than those measured with pure SF/sub 6/.

  • Determination of Vapour Pressure of gasoline by double ANN algorithm combined with multidimensional gas chromatography

    In this paper, a double artificial neural network (ANN) algorithm has been established for calculating the Vapour Pressure of gasoline from the results of multidimensional gas chromatography analysis. Multidimensional resolution column was applied to obtain the results of the detailed hydrocarbon analysis of gasoline. The double ANN regression model has been established between the results of the detailed hydrocarbon analysis and the actually determined Vapour Pressure. When the method was applied to determine Vapour Pressure of export gasoline samples, the deviation of results was about 0.05 Psi (1 Psi=6.89 KPa) compared with the standard method. The result of double ANN regression model was better than the result of partial least square (PLS) regression model. This method was easy to manipulate, and the modeling process was fast and easy to achieve. It was suitable for measuring the Vapour Pressure of the gasoline samples from the refinery and the export inspection.

  • Determination of Four Volatile Halohydrocarbons in Water by Purge and Trap-Gas Chromatography-Mass

    A sensitive and fast analytical method using purge-and-trap (P&T) on-line coupling with gas chromatography was developed for the determination of four trace volatile halohydrocarbons including methylene, chloroform, carbon tetrachloride and trichloroethylene in water. The analytes were purged for 10min from the sample by high purity nitrogen and preconcentrated in the cooled trap at -80 degC . The halohydrocarbons were separated with an gas chromatograph by a suitable temperature program and detected by means of a mass spectrometer using selected ion monitoring (SIM). The detection limits were found to be in the range of 0.0008 to 0.02mug/L, the relative deviations ranged from 1.9% to 5.4%, the recovery ratios ranged were 89% to 104%, The linearity ranges of 4 compounds were in the range of 0.001 to 50mug/L, with correlation coefficients from 0.9991 to 0.9997. The method is fast, sensitive, simple. It has better accuracy and precision in determination of these halohydrocarbons in water compared with the traditional method.

  • Organotin Concentrations in the Southern Chesapeake Bay

    A monitoring program designed to determine the concentrations of tributyltin in waters surrounding marinas in the southern Chesapeake Bay started in January, 1986. In addition, water samples were analyzed from the Elizabeth River to ascertain the tributyltin concentrations in this highly industrialized estuary. The data show that tributyltin concentrations vary considerably over both space and time. Concentrations, an order of magnitude apart, were found at the same location within the same week and levels a factor of two different were found in samples collected from different locations at the same marina, at the same time.

  • Removal of 1,2,4-TCB from Flue Gas by Aqueous Chlorine-Dioxide Scrubbing

    The present study attempts to clean up 1,2,4-trichlorobenzene (TCB) vapor simultaneously from the flue gas in the lab-scale bubbling reactor. Experiments were carried out to examine the effect of various operating parameters like input TCB vapor concentration, pH value of reaction medium, reaction temperature etc. It was found that at the optimum experimental conditions of reaction temperature 50degC, pH value of reaction medium 10, oxygen content in simulating gas 5%~10%, and input TCB concentration 800 ug/L, the removal efficiencies of TCB reached above 90%. This work would offer important basic data for industrial application in future.

  • Mussel Watch in Canada: Organic Contaminants in Mussels at Three Sites Nationwide

    Samples of the edible mussel Mytilus edulis were collected four to six times over a period of sixteen months from three locations in Canada: a West Coast site near North Vancouver, an East Coast site in the entrance to the Halifax Harbour and a site in St. Lawrence Estuary in a pristine area of Quebec removed from any major urban areas. The mussel samples were analyzed for organic chemical contaminants including alkanes, aromatic hydrocarbons, polychlor inated biphenyls (PCBs), DDT and other chlorinated hydrocarbon pesticides. Physiological parameters of the mussels (moisture, lipid and glycogen content were also measured.

  • Novel format chromatographic columns for improved overall analytical performance

    In this work, we have developed gas chromatography columns using microfabrication techniques and interfaced them using compression sealing technique to enable high temperature (~400°C) operation. Specifically, we present graphite compression sealing technique to achieve leak-proof fluidic interconnection between the inlet tubing and the microchannel, thus removing the limiting factor of epoxy and allowing for high temperature operations. This approach also represents a significant improvement from previous designs in which the tubing are interfaced to the microfluidic channel from the side of the chip resulting which results in significant band broadening and tailing, as well as making the device less amenable to automatic installation. The microfabricated gas chromatography (μGC) column has been successfully used to perform high temperature gas separation.

  • An aging study of double GEMs in Ar-CO/sub 2/

    An aging study was performed using double GEMs and a printed circuit readout board (PCB) with an intense X-ray source in an ultra clean Argon-CO/sub 2/ gas environment. The detector was irradiated continuously for about 1000 hours without interruption until a large amount of charge was accumulated. A single- wire chamber served as a monitoring device to check the beam and ambient conditions and gas chromatography was used to ensure no hydrocarbon materials were present in the gas mixture. The detector could withstand more than 25 mC/mm/sup 2/ with only a slight sign of aging and the charge accumulated is presumably sufficient to conduct large-scale and long-term experiments in intense radiation fields.

  • Selective preconcentration by temperature manipulation of cascaded micro preconcentrators

    This article presents a new method for selective preconcentration of target species and the elimination of unwanted ones from a sample mixture. In this approach, the temperature and flow direction of two microfabricated preconcentrators connected in series are controlled according to the boiling points of target species. Each micro preconcentrator consists of embedded high-aspect-ratio pillars coated with Tenax TA as the adsorbent polymer. The results showed successful concentration of propofol, a drug used for general anesthesia, from a mixture containing several volatile organic compounds found in breath. Measurements showed increase in relative concentration of propofol to C<sub>14</sub> by 99.8% and elimination of water-like solvent by 99.9%.



Standards related to Gas chromatography

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IEEE Guide for Evaluation and reconditioning of Liquid Immersed Power Transformers

This guide includes guidelines for the following: insulating oil maintenance and diagnostics, oil reclamation, testing methods for the determination of remaining insulation (paper) life, and upgrades of auxiliary equipment such as bushings, gauges, deenergized tap changers (DETCs), load tap changers (LTCs) (where applicable), and coil reclamping. The goal of this guide is to assist the user in extending the useful ...



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