• Thumbnail for Gas chromatography
    Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without...
    38 KB (5,022 words) - 03:26, 19 October 2024
  • Thumbnail for Gas chromatography–mass spectrometry
    Gas chromatography–mass spectrometry (GC–MS) is an analytical method that combines the features of gas-chromatography and mass spectrometry to identify...
    38 KB (4,826 words) - 05:52, 30 October 2024
  • analysis, chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid solvent (gas or liquid)...
    58 KB (7,255 words) - 14:50, 16 November 2024
  • Gas chromatography-olfactometry (GC-O) is a technique that integrates the separation of volatile compounds using a gas chromatograph with the detection...
    13 KB (1,828 words) - 15:37, 15 December 2023
  • Thumbnail for Liquid chromatography–mass spectrometry
    capabilities of liquid chromatography (or HPLC) with the mass analysis capabilities of mass spectrometry (MS). Coupled chromatography – MS systems are popular...
    46 KB (5,941 words) - 07:27, 17 November 2024
  • Thumbnail for Pyrolysis–gas chromatography–mass spectrometry
    Pyrolysis–gas chromatography–mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules...
    6 KB (668 words) - 19:42, 29 April 2023
  • Thumbnail for Electron ionization
    use a direct insertion probe, and complex mixtures use gas chromatography or liquid chromatography. In this method the sample is first inserted into a heated...
    31 KB (4,003 words) - 06:11, 3 July 2024
  • Thumbnail for High-performance liquid chromatography
    High-performance liquid chromatography (HPLC), formerly referred to as high-pressure liquid chromatography, is a technique in analytical chemistry used...
    89 KB (10,999 words) - 13:19, 7 November 2024
  • Thumbnail for Mass spectrometry
    the actual molecule(s) of interest. Similarly to gas chromatography MS (GC-MS), liquid chromatography-mass spectrometry (LC/MS or LC-MS) separates compounds...
    82 KB (10,326 words) - 02:15, 19 October 2024
  • Thumbnail for Forensic chemistry
    unknown substances. These include high-performance liquid chromatography, gas chromatography-mass spectrometry, atomic absorption spectroscopy, Fourier...
    43 KB (4,484 words) - 10:33, 21 August 2024
  • product may be less polar, thus more volatile, allowing analysis by gas chromatography. Bulky, nonpolar silyl groups are often used for this purpose. Chiral...
    4 KB (410 words) - 08:46, 18 May 2023
  • Thumbnail for Ion mobility spectrometry
    but are often coupled with mass spectrometry, gas chromatography or high-performance liquid chromatography in order to achieve a multi-dimensional separation...
    36 KB (4,518 words) - 20:43, 1 November 2024
  • sample of mixed gases. The separated gases can be detected multiple ways, but one of the most powerful detection methods for gas chromatography is mass spectrometry...
    40 KB (5,402 words) - 13:33, 11 September 2024
  • Similar to the process of distillation, gas-liquid chromatography (typically referred to as gas chromatography, or, more simply, GC) utilises a distillation...
    15 KB (1,518 words) - 18:59, 26 September 2024
  • Thumbnail for Flame ionization detector
    Flame ionization detector (category Gas chromatography)
    instrument that measures analytes in a gas stream. It is frequently used as a detector in gas chromatography. The measurement of ions per unit time makes...
    11 KB (1,387 words) - 20:35, 12 July 2024
  • Comprehensive two-dimensional gas chromatography, or GC×GC, is a multidimensional gas chromatography technique that was originally described in 1984 by...
    12 KB (1,509 words) - 17:23, 24 September 2024
  • liquid ion chromatography (detects abnormal amino acid patterns and quantitative analysis) Urine organic acid analysis by gas chromatography–mass spectrometry...
    15 KB (1,526 words) - 15:07, 30 October 2024
  • Thumbnail for Column chromatography
    Column chromatography in chemistry is a chromatography method used to isolate a single chemical compound from a mixture. Chromatography is able to separate...
    18 KB (2,378 words) - 10:48, 8 October 2024
  • Inverse gas chromatography is a physical characterization analytical technique that is used in the analysis of the surfaces of solids. Inverse gas chromatography...
    13 KB (1,760 words) - 23:53, 23 December 2023
  • Headspace gas chromatography uses headspace gas—from the top or "head" of a sealed container containing a liquid or solid brought to equilibrium—injected...
    16 KB (1,843 words) - 23:13, 19 June 2023
  • Thumbnail for Noble gas
    low temperatures. Helium is used as the carrier medium in gas chromatography, as a filler gas for thermometers, and in devices for measuring radiation...
    97 KB (9,891 words) - 05:10, 11 November 2024
  • Thumbnail for Two-dimensional chromatography
    phases. These techniques would later generate modern gas chromatography (GC) and liquid chromatography (LC) analysis. Different combinations of one-dimensional...
    21 KB (2,652 words) - 12:29, 15 January 2024
  • Size-exclusion chromatography (SEC) Affinity chromatography Centrifugal partition chromatography Gas chromatography and Inverse gas chromatography Crystallization...
    8 KB (860 words) - 10:40, 17 June 2024
  • Thumbnail for History of mass spectrometry
    Hiroshima in 1945. The use of a mass spectrometer as the detector in gas chromatography was developed during the 1950s by Roland Gohlke and Fred McLafferty...
    25 KB (2,962 words) - 14:33, 20 July 2024
  • Thumbnail for Paper chromatography
    Paper chromatography is an analytical method used to separate coloured chemicals or substances. It is now primarily used as a teaching tool, having been...
    8 KB (1,073 words) - 09:38, 18 October 2024
  • The history of chromatography spans from the mid-19th century to the 21st. Chromatography, literally "color writing", was used—and named— in the first...
    25 KB (3,029 words) - 20:46, 15 August 2024
  • Thumbnail for Forensic toxicology
    true-positive, a false-negative, a false-positive, and a true-negative. Gas chromatography-mass spectrometry (GC-MS) is a widely used analytical technique for...
    19 KB (2,421 words) - 05:04, 27 June 2024
  • Thumbnail for Pyrolysis
    sorted by using chromatography. The third and final phase was analyzed using an online micro GC unit and those pyrolysates were gases. Two different types...
    81 KB (8,476 words) - 20:49, 16 October 2024
  • Thumbnail for Analytical chemistry
    example, gas chromatography-mass spectrometry, gas chromatography-infrared spectroscopy, liquid chromatography-mass spectrometry, liquid chromatography-NMR...
    33 KB (3,785 words) - 03:23, 4 November 2024
  • Thumbnail for Archer Martin
    chromatography. He developed partition chromatography whilst working on the separation of amino acids, and later developed gas-liquid chromatography....
    9 KB (793 words) - 07:29, 9 November 2024