Pct petroleum products and used oils - determination of pcbs and related products - part 3 : determination and quantification of polychlorinated terphenyls and polychlorinated benzyl toluenes content by gas chromatography using an electron capture detector 石油产品和用过的油. pcb和相关产品的测定.第3部分:用电子俘获探测器的气相色谱法测定和量化多氯三联苯
Methods of test for petroleum and its products - petroleum products and used oils - determination of pcbs and related products - separation and determination of selected pcb congeners by gas chromatography using an electron capture detector 石油及其制品试验方法.石油产品和用过的油. pcbs及相关产品的测定.通过带电子俘获探测器的气相色谱法分离和测定选定的pcb同种类物
An electron capture detector (ECD) is a device for detecting atoms and molecules in a gas through the attachment of electrons via electron capture ionization. The device was invented in 1957 by Dr.