Zuber Jan, Kroll Marius M, Rathsack Philipp, Otto Matthias
Institute of Analytical Chemistry, TU Bergakademie Freiberg, 09599 Freiberg, Germany.
Institute of Analytical Chemistry, TU Bergakademie Freiberg, 09599 Freiberg, Germany; German Centre for Energy Resources, Reiche Zeche, Fuchsmuehlenweg 9, 09599 Freiberg, Germany.
Int J Anal Chem. 2016;2016:5960916. doi: 10.1155/2016/5960916. Epub 2016 Mar 15.
Pyrolysis oil from the slow pyrolysis of German brown coal from Schöningen, obtained at a temperature of 500°C, was separated and analyzed using hyphenation of gas chromatography with an atmospheric pressure chemical ionization source operated in negative ion mode and Fourier transform ion cyclotron resonance mass spectrometry (GC-APCI-FT-ICR-MS). Development of this ultrahigh-resolving analysis method is described, that is, optimization of specific GC and APCI parameters and performed data processing. The advantages of GC-APCI-FT-ICR-MS hyphenation, for example, soft ionization, ultrahigh-resolving detection, and most important isomer separation, were demonstrated for the sample liquid. For instance, it was possible to separate and identify nine different propylphenol, ethylmethylphenol, and trimethylphenol isomers. Furthermore, homologous series of different acids, for example, alkyl and alkylene carboxylic acids, were verified, as well as homologous series of alkyl phenols, alkyl dihydroxy benzenes, and alkoxy alkyl phenols.
从舍宁根的德国褐煤在500°C温度下慢速热解得到的热解油，采用气相色谱与在负离子模式下运行的大气压化学电离源和傅里叶变换离子回旋共振质谱联用（GC-APCI-FT-ICR-MS）进行分离和分析。描述了这种超高分辨率分析方法的开发，即特定气相色谱和大气压化学电离参数的优化以及数据处理。对于样品液体，展示了GC-APCI-FT-ICR-MS联用的优势，例如软电离、超高分辨率检测以及最重要的异构体分离。例如，能够分离并鉴定出九种不同的丙基苯酚、乙基甲基苯酚和三甲基苯酚异构体。此外，还验证了不同酸的同系物系列，例如烷基和亚烷基羧酸，以及烷基苯酚、烷基二羟基苯和烷氧基烷基苯酚的同系物系列。
