Lecture

Gas Chromatography: Basics

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In course

CH-301: Analytical separation methods

Les étudiants comprennent les bases physico-chimiques des méthodes de séparation chromatographiques et électrophorétiques. ...

Description

This lecture introduces Gas Chromatography (GC), a technique that separates solutes in a gaseous state. It covers the principles of GC, types of solutes suitable for analysis, injectors, carrier gases, detectors, and column types. The lecture also explains the importance of liners, injectors, and columns in GC analysis.

Instructor

Christophe Roussel

Habilitation à Diriger les Recherches (HDR) in chemistry at the Ecole Normale Supérieure Paris-Saclay (Cachan, France)PhD Thesis in physical organic chemistry at the University of Bourgogne Franche-Comté (Besançon, France) / Ecole Normale Supérieure Paris-Saclay (Cachan, France)

Official source

Related concepts (32)

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 different substances within a test sample. Applications of GC–MS include drug detection, fire investigation, environmental analysis, explosives investigation, food and flavor analysis, and identification of unknown samples, including that of material samples obtained from planet Mars during probe missions as early as the 1970s.

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 substances based on differential adsorption of compounds to the adsorbent; compounds move through the column at different rates, allowing them to be separated into fractions. The technique is widely applicable, as many different adsorbents (normal phase, reversed phase, or otherwise) can be used with a wide range of solvents.

Particle detector

In experimental and applied particle physics, nuclear physics, and nuclear engineering, a particle detector, also known as a radiation detector, is a device used to detect, track, and/or identify ionizing particles, such as those produced by nuclear decay, cosmic radiation, or reactions in a particle accelerator. Detectors can measure the particle energy and other attributes such as momentum, spin, charge, particle type, in addition to merely registering the presence of the particle.

Injective module

In mathematics, especially in the area of abstract algebra known as module theory, an injective module is a module Q that shares certain desirable properties with the Z-module Q of all rational numbers. Specifically, if Q is a submodule of some other module, then it is already a direct summand of that module; also, given a submodule of a module Y, any module homomorphism from this submodule to Q can be extended to a homomorphism from all of Y to Q. This concept is to that of projective modules.

Semiconductor detector

A semiconductor detector in ionizing radiation detection physics is a device that uses a semiconductor (usually silicon or germanium) to measure the effect of incident charged particles or photons. Semiconductor detectors find broad application for radiation protection, gamma and X-ray spectrometry, and as particle detectors. In semiconductor detectors, ionizing radiation is measured by the number of charge carriers set free in the detector material which is arranged between two electrodes, by the radiation.

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