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
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
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
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
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
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
Mass spectrometry (redirect from Trace gas analysis)
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
Forensic chemistry (section Chromatography)
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
Derivatization (section For gas chromatography)
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
Ion mobility spectrometry (section Gas chromatography)
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
Petroleum geochemistry (section Gas Chromatography)
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
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
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
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
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
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
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
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
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
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
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