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首页> 外文期刊>Journal of Analytical Atomic Spectrometry >Parallel ICP-MS and EI-MS detection after GC separation as a unique tool for simultaneous identification and quantification of volatile heteroatomic organic compounds
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Parallel ICP-MS and EI-MS detection after GC separation as a unique tool for simultaneous identification and quantification of volatile heteroatomic organic compounds

机译：气相色谱分离后同时进行ICP-MS和EI-MS平行检测是同时鉴定和定量挥发性杂原子有机化合物的独特工具

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摘要

The presented technique combines the quantitative benefits characteristic of element specific inductively coupled plasma mass spectrometry (ICP-MS) techniques with the advantages of highly selective and molecule specific electron ionisation mass spectrometry (EI-MS) detection by parallel hyphenation of these detectors. As proof of concept, parallel detection of four iodinated alkanes ( iodomethane, iodoethane, 1-iodopropane, 2-iodopropane) with EI-MS and ICP-MS after capillary gas chromatography ( GC) is demonstrated. Analytical figures of merit resulting from linear calibration are presented and compared with respect to the two different detectors. Limits of detection (0.6 pg as iodine) comparable to values reported in literature were achieved for ICP-MS detection of all investigated species.
机译：提出的技术将元素特异性电感耦合等离子体质谱（ICP-MS）技术的定量收益特征与通过这些检测器的平行联用的高选择性和分子特异性电子电离质谱（EI-MS）检测的优势相结合。作为概念验证，证明了在毛细管气相色谱法（GC）之后用EI-MS和ICP-MS并行检测四种碘代烷烃（碘甲烷，碘乙烷，1-碘丙烷，2-碘丙烷）。给出了线性校准产生的品质分析图，并针对两个不同的检测器进行了比较。 ICP-MS检测所有被调查物种的检出限（碘为0.6 pg）均达到文献报道的水平。

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