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Gas Chromatography Applications

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    odor control for asphalt

    Control Asphalt Odors Naturally: The production of hot mix paving asphalt generates odors that can be strong, persistent, and a nuisance to employees and neighbors alike. Controlling and abating these odors can be a challenge.

    By OMI Industries (OMI) based in Long Grove, ILLINOIS (USA).

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    A New GC-MS Method for Mycotoxin Analysis Using 13C-marked Mycotoxin Derivatives

    Andreas Breidbach [1] and Wolfgang Brodacz [2,3,4] developed a new GC-MS method using fully 13C isotopelabelled analogues of T-2 toxin and HT-2 toxin that allows for the detection of these toxins at concentrations as low as 2–5 ppb.

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Analysis of Herbicides in Drinking Water

    Herbicides are used throughout the world to combat the growth of unwanted plant life. These polar compounds are hydrophilic, so they may find their way into drinking water sources. While gas chromatography has historically been the preferred technique for analysis of herbicides in water samples, the use of LC-MS/MS for this application is gaining acceptance. This is due to the power of MS/MS to provide detailed identification of multiple analytes, but also in part due to the variety of HPLC stationary phases...

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Analysis of Pesticides in Beef Kidney

    The suitability of the new cleanup sorbent, Supel QuE Z-Sep+, has been successfully demonstrated for cleanup of beef kidney matrix. It was found to effectively reduce background without significantly reducing recovery of lipophilic pesticides such as organochlorines and some pyrethroids. GC-MS full-scan data indicated Z-Sep+ was found to provide better cleanup in the form of reduced background than PSA/C18, and less interference in the GC-MS/SIM analysis of the target pesticides themselves.

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Measurement of ethylene oxide for monitoring workplace exposure limits

    The Series 8900 Ethylene Oxide Analyzer combines the selectivity of gas chromatography with the sensitivity of a Photoionization Detector (PID) providing interference free response to Ethylene Oxide (EtO) at levels below 0.05 ppm. This analytical method is referenced in OSHA`s `Occupational Exposure to Ethylene Oxide: Final Standard` 29 CFR Part 1910. The system documents exposure levels including: time-weighted averages (TWA), short-term exposure limits (STEL) and instantaneous alarms. Areas that are typically...

    By AMETEK MOCON - Baseline based in Lyons, COLORADO (USA).

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    High accuracy gas flowmeters for gas mixing & blending applications

    For over 40 years, Sierra has designed and manufactured a wide range of today’s most advanced digital gas flowmeters and controllers for reasearchers and systems integrators, including a high-flow, high-pressure gas flowmeter with a complete suite of digital protocols for network integration.

    By Sierra Instruments, Inc. based in Monterey, CALIFORNIA (USA).

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    Measurement of C1-C5 hydrocarbons for oil & gas exploration.

    The PetroAlert Model 8900 combines the selectivity of gas chromatography with the sensitivity, broad dynamic range, and hydrocarbon selectivity of a flame ionization detector (FID) providing fast analysis of C1-C5 hydrocarbons required in Mud Logging for Oil & Gas exploration. The PetroAlert Model 8900 uses a dual column configuration with timed backflush to vent which is used to strip off moisture and C6+ hydrocarbons. A pre-cut column is used in series with the analytical column. At sample injection a...

    By AMETEK MOCON - Baseline based in Lyons, COLORADO (USA).

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    PTR-MS systems for food & flavor science

    Aroma real-time quantification with PTR-MS. Rapid screening for complex aroma systems. Rich chemical fingerprints due to soft ionization. Real-time sampling: high throughput. Ideal for chemometric data-mining methods.

    By Ionicon Analytik Ges.m.b.H. based in Innsbruck, AUSTRIA.

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    Monitoring of leaks in heat exchangers

    Optical instruments called fluorometers can very easily detect and measure dissolved petroleum hydrocarbons in water, and at very low concentrations. As shown in the study below, TD-4100 series monitors are able to measure xylene continuously over four consecutive weeks with a direct correlation coefficient of 0.9967 compared to GC grab sample analysis.

    By Turner Designs Hydrocarbon Instruments, Inc. based in Fresno, CALIFORNIA (USA).

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    PTR-MS systems for biological research

    Real-time measurement of plant defense and leaf wounding reactions. Measurement of VOCs in dynamic biological systems with low detection limit and without sample preparation.

    By Ionicon Analytik Ges.m.b.H. based in Innsbruck, AUSTRIA.

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    Measurement of C1-C5 with carbon dioxide for oil & gas exploration.

    The PetroAlert Model 8900 combines the selectivity of gas chromatography with the sensitivity, broad dynamic range, and hydrocarbon selectivity of a flame ionization detector (FID) providing fast analysis of C1-C5 hydrocarbons and Carbon Dioxide required in Mud Logging for Oil & Gas exploration. The PetroAlert Model 8900 uses a dual column configuration with timed backflush to vent which is used to strip off moisture and C6+ hydrocarbons. A pre-cut column is used in series with the analytical column. At...

    By AMETEK MOCON - Baseline based in Lyons, COLORADO (USA).

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    Analysis of VOC compounds in water by Purge & Trap or dynamic headspace

    Context & Challenges Volatile organic compounds (VOC) can be dissolved in water. Sometimes water is polluted and to study contamination of VOC in finished drinking water, VOC must be measured. Chromatotec® Solutions Chromatotec® has developed a specific system for the measurement of VOC in water: a Purge & Trap system, the airmoPURGE. The analyzer is coupled with a degasing system allowing the extraction of dissolved gases. The complete system is based on: - 502.2 method from US EPA –...

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Gas classification module for Industrial & specialty gases industry

    Gas and Specialty Gas Compliance Solution; End-to end Safety Data Sheet solution for industrial & specialty gases in compliance with EIGA, CGA and GHS. Lisam’s ExESS® Gas Classification Module (GCM) specifically addresses the gas classification compliance requirements of GHS. The ExESS® GCM was developed in close partnership with the European Industrial Gases Association (EIGA). As a member of and collaborator with global associations such as the Compressed Gas Association (CGA) and EIGA,...

    By Lisam Systems based in Ecaussinnes, BELGIUM.

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    Mass flow devices for analytical instrumentation

    Axetris mass flow devices are used in a variety of analytical applications: Gas Chromatography, Mass Spectrometry, Atomic Spectroscopy, Elemental Analysis, Thermal Analysis, Bioreactor and Fermentor.

    By Axetris Ag based in Kaegiswil, SWITZERLAND.

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    Gas Chromatography for testing laboratory

    By Peak Scientific Instruments Ltd based in Inchinnan, UNITED KINGDOM.

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    Microbiological solutions for the governmental industry

    Our laboratory specializes in microbiological identification and characterization lab services, hygiene monitoring services and the R&D of rapid microbial detection systems for the environmental, pharmaceutical, food, and beverage industries. Our market advantages include proprietary, microbial kinetic and endpoint assays, microbial databases which contain profiles of over 3,000 species of microbes (including extensive E. coli 0157:H7 and yeast identification databases), microbial diagnostics research,...

    By Microbe Inotech Laboratories, Inc based in St. Louis, MISSOURI (USA).

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    Analytical instruments for gas chromatography

    Gas Chromatography requires a stable repeatable flow of the carrier gas with negligible temperature drift. The Axetris MFC provides excellent control of the gas flow resulting in sharp peaks and high resolution of the chromatograms. Multiple calibrations allow the control of Helium, Hydrogen or Nitrogen. Due to the high turn down ratio of 1000:1 and more, a broad range of flows can be controlled.

    By Axetris Ag based in Kaegiswil, SWITZERLAND.

  • A New GC-MS Method for Mycotoxin Analysis Using 13C-marked Mycotoxin Derivatives

    Andreas Breidbach [1] and Wolfgang Brodacz [2,3,4] developed a new GC-MS method using fully 13C isotopelabelled analogues of T-2 toxin and HT-2 toxin that allows for the detection of these toxins at concentrations as low as 2–5 ppb.

    By MilliporeSigma based in Bellefonte, PENNSYLVANIA (USA).

  • Measurement solution for FTIR Vs. GC in gas analysis

    Comparison of Technologies

    A gas chromatograph (GC) has traditionally been the technology of choice for laboratory analysis of gas samples. GCs have been used for over 50 years in the qualification and quantification of complex mixtures of gases. The techniques and methodology required to run GCs are often a pre-requisite for any laboratory technician. Recent developments in Fourier Transform Infra-Red (FTIR) gas analysis has enabled this technology to start to replace GCs in the...

    By Protea Limited based in Middlewich, UNITED KINGDOM.

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