Difference between revisions of "Electron capture detector"
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== Description == | == Description == | ||
| − | A type of detector used in gas chromatographs. The electron capture detector (or ECD) contains a radioactive Nickel (63Ni) plate that emits a cloud of beta particles (electrons). Electronegative compounds, such as halogenated materials, are ionized by the electron cloud. Electrodes measure the ionization levels in the chamber. ECD detectors are extremely sensitive | + | A type of detector used in gas chromatographs. The electron capture detector (or ECD) contains a radioactive Nickel (63Ni) plate that emits a cloud of beta particles (electrons). Electronegative compounds, such as halogenated materials, are ionized by the electron cloud. Electrodes measure the ionization levels in the chamber. ECD detectors are extremely sensitive and can measure part per trillion levels of many chlorinated and fluorinated compounds. It is most often used in environmental analysis to detect pesticides and herbicides. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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ECD; détecteur par capture d'électrons (Fr.); Elektroneneinfang Detektor (Deut.) | ECD; détecteur par capture d'électrons (Fr.); Elektroneneinfang Detektor (Deut.) | ||
| − | == | + | ==Resources and Citations== |
| − | SRI | + | * SRI at http://www.srigc.com/catalog/ecddetector.htm |
| − | + | * Varian at http://www.varianinc.com/cgi-bin/nav?varinc/docs/products/chrom/gc/gcelectron&cid=635734 | |
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[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 13:09, 1 August 2022
Description
A type of detector used in gas chromatographs. The electron capture detector (or ECD) contains a radioactive Nickel (63Ni) plate that emits a cloud of beta particles (electrons). Electronegative compounds, such as halogenated materials, are ionized by the electron cloud. Electrodes measure the ionization levels in the chamber. ECD detectors are extremely sensitive and can measure part per trillion levels of many chlorinated and fluorinated compounds. It is most often used in environmental analysis to detect pesticides and herbicides.
Synonyms and Related Terms
ECD; détecteur par capture d'électrons (Fr.); Elektroneneinfang Detektor (Deut.)