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METHOD FOR DETERMINATION OF PAHS AND PCBS IN SAMPLE BY GC/MS WITH SPME
METHOD FOR DETERMINATION OF PAHS AND PCBS IN SAMPLE BY GC/MS WITH SPME
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机译:GC / MS-SPME法测定样品中PAHS和PCBS的方法
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摘要
The invention, SPME (Solid Phase Microextraction, the solid trace extraction) fiber for the above sample water head space (headspace: HS) with a possible fixed-bed adsorption of the analytes is covered by mounting exposed to water sample or a biological sample in the PAHs (polyaromatic hydrocarbons), and adsorbing PCBs (polychlorinated biphenyls) and, after the PAHs and PCBs are desorb the adsorbed fiber in the gas chromatography injection port of a high temperature, comprising the steps of analyzing in a gas chromatography / mass spectrometry, a sample of It relates to a method for simultaneous detection PAHs and PCBs present in trace amounts. The detection method of the present invention is also applicable to biological samples comprising a more complex matrix, such as urine or blood, in addition to typical water samples, the sensitivity is excellent, because the pre-treatment process without the use of organic solvent required beneficial environmental and economic Do.
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