gas chromatography column Articles

  • High Resolution Detailed Hydrocarbon Analyses by Capillary Column Gas Chromatography

    In the petrochemical industry, samples such as petroleum naphthas and gasolines routinely must be quantitatively separated into their individual components.  Because these petroleum-derived samples consist of hundreds of compounds, petroleum analysts require chromatography columns that offer high resolution.  We have developed polar and nonpolar capillary gas chromatography columns to ...


    By MilliporeSigma

  • Chromatography plays its part in turning Science Fiction into Science Fact

    Tomek Bagiński’s short film Ambition picks up on a fundamental drive of human kind, a thirst for knowledge and understanding, a thirst that can be sated through projects like Rosetta which are turning science fiction into science fact: Ambition the film Rosetta is an ESA mission with contributions ...


    By Anthias Consulting Ltd.

  • Gas chromatography - What are Columns?

    Liquid and gas chromatography instruments wouldn't work without columns. Both liquid and gas chromatography analyze samples by separating them into their individual chemical components. A column, a long tube lined with specialized chemicals, is required for this process as it forms part of the instrument which performs the separation. When a sample makes its way through the tube, certain ...

  • GC Analyses of Polynuclear Aromatic Hydrocarbons

    Polynuclear aromatic hydrocarbons (PAHs) can be separated by packed column or capillary column gas chromatography. An SPB-5 bonded phase fused silica capillary  column separates the 16 PAHs considered priority pollutants in wastewater by the US Pal SP-301, a liquid crystal stationary phase in packed GC columns, resolves benzo(e)pyrene and benzo(a)pyrene. This publication discusses ...


    By MilliporeSigma

  • U.S. EPA volatile organics method 524.2 using PURGE and TRAP GC/MS

    Clean drinking water is of worldwide interest. Contaminants can compromise the quality of a water supply and cause short- and long-term health effects. Stringent water quality criteria help to ensure safe drinking water by requiring the detection and quantification of a wide variety of contaminants at extremely low levels. U.S. EPA Method 524.2 (1) provides the guidance necessary for identifying ...


    By PerkinElmer, Inc.

  • Validation of USEPA Method 524.2 Using a Stratum PTC, AQUATek 100 Autosampler, and Perkin-Elmer Clarus 600 GC/MS

    The US EPA developed Method 524.2¹, “Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry”, for identifying and measuring purgeable volatile organic compounds (VOC) in surface water, groundwater, and drinking water. Due to the required sensitivity of this method, the use of purge and trap gas chromatography is vital. This ...


    By Teledyne Tekmar

  • Headspace gas chromatography with flame ionization detection (HS-GC-FID) for the determination of dissolved methane in wastewater

    There is currently a need for a simple, accurate and reproducible method that quantifies the amount of dissolved methane in wastewater in order to realize the potential methane that can be recovered and account for any emissions. This paper presents such a method, using gas chromatography with flame ionization detection fitted with a GS-Gas PRO column coupled with a headspace auto sampler. A ...


    By IWA Publishing

  • Case study N°AA7 – Ambiant air monitoring – VOC Purge & trap

    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 ...


    By Chromatotec Group

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