- electron capture detector
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An item of laboratory equipment used coupled to a gas chromatograph for the detection and quantification of very minute amounts halogenated organic compounds.
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electron capture detector
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Electron capture detector — The electron capture detector (ECD) was invented in 1957, by Dr. James E. Lovelock . [cite journal title = A sensitive detector for gas chromatography author = J. E. Lovelock journal = Journal of Chromatography A year = 1958 volume = 1 issue = 1… … Wikipedia
electron capture detector — (ECD) A type of gas chromatographic detector which is sensitive to halogenated hydrocarbons and other molecules capable of easily gaining an electron. Electron capture is not generally used for hydrocarbon detection … Forensic science glossary
Detector de captura de electrones — Saltar a navegación, búsqueda El detector de captura de electrones es un tipo de detector utilizado en cromatografía de gases. Fue inventado por James Lovelock. Su funcionamiento básico se basa en la emisión de una partícula β (electrón) por… … Wikipedia Español
Detector de captura de electrones — Detector utilizado en cromatografía de gases. Su funcionamiento básico se basa en la emisión de una partícula ß (electrón) por parte de átomos como el 63Ni o tritio adsorbido sobre una placa de platino o titanio. Típicamente, un ECD (electron… … Enciclopedia Universal
Chromatography detector — A chromatography detector is a device used in gas chromatography (GC) or liquid chromatography (LC) to visualize components of the mixture being eluted off the chromatography column. There are two general types of detectors: destructive and non… … Wikipedia
Neutrino detector — The Sudbury Neutrino Observatory, a 12 meter sphere filled with heavy water surrounded by light detectors located 2000 meters below the ground in Sudbury, Ontario, Canada. A neutrino detector is a physics apparatus designed to study neutrinos.… … Wikipedia
Negative electron-transfer dissociation — (NETD) is an ion/ion reaction in which an electron from an anionic specie is transferred to cationic reagent.[1] Following this transfer event, the electron deficient anion undergoes internal rearrangement and fragments. NETD is the ion/ion… … Wikipedia
Reflection high energy electron diffraction — (RHEED) is a technique used to characterize the surface of crystalline materials. RHEED systems gather information only from the surface layer of the sample, which distinguishes RHEED from other materials characterization methods that rely also… … Wikipedia
Scanning electron microscope — These pollen grains taken on an SEM show the characteristic depth of field of SEM micrographs … Wikipedia
chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… … Universalium
