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electron capture |
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electron capture, a radioactive decay process in which an atomic nucleus with an excess of protons draws an electron into itself, creating a neutron out of a proton and thus decreasing the atomic number by 1. Often the resulting nucleus is unstable and achieves stability by giving off a gamma ray. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The new method combines two different ionic dissociation methods, collision induced dissociation (CID) and electron capture dissociation (ECD), to analyze proteins thoroughly by quickly switching the dissociation methods. An aliquot of transformer oil from the drum of the Exxon Univolt 60 transformer oil was examined for traces of PCBs as would be evident by capillary gas chromatography with electron capture detection (GC-ECD). The sampling effort by 23 labs measured dioxins with mass spectrometry and quantified PCBs using gas chromatographic techniques along with electron capture or mass spectrometry. |
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