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METHOD FOR DETERMINATION OF PAHS AND PCBS IN SAMPLE BY GC/MS WITH SPME

机译:GC / MS-SPME法测定样品中PAHS和PCBS的方法

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.
机译:通过将暴露于水样品或生物样品的装置固定在用于样品水顶部空间(顶部空间:HS)的SPME(固相微萃取,固体痕量提取)纤维上,并可能吸附分析物。 PAHs(多环芳烃)和吸附的PCBs(多氯联苯),以及在PAHs和PCBs在高温的气相色谱注入口解吸吸附的纤维之后,包括在气相色谱/质谱分析中进行分析的步骤,它涉及一种同时检测痕量PAH和PCB的方法。本发明的检测方法还适用于除了典型的水样品以外还包含尿液或血液等更复杂的基质的生物样品,因此灵敏度优异,这是因为不需要使用有机溶剂的预处理工序。对环境和经济有益。

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