Investigation and Applications of In-Source Oxidation in Liquid Sampling-Atmospheric Pressure Afterglow Microplasma Ionization (LS-APAG) Source
文献类型：期刊论文
| 作者 | Xie, Xiaobo1,2; Wang, Zhenpeng3; Li, Yafeng1; Zhan, Lingpeng1,2; Nie, Zongxiu1,2,3 |
| 刊名 | JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 28期号:6页码:1036-1047 |
| 关键词 | In-source Oxidation Atmospheric Pressure Afterglow Ionization Structural Identification Alkane Analysis Double Bond Positions |
| 英文摘要 | A liquid sampling-atmospheric pressure afterglow microplasma ionization (LS-APAG) source is presented for the first time, which is embedded with both electrospray ionization (ESI) and atmospheric pressure afterglow microplasma ionization (APAG) techniques. This ion source is capable of analyzing compounds with diverse molecule weights and polarities. An unseparated mixture sample was detected as a proof-of-concept, giving complementary information (both polarities and non-polarities) with the two ionization modes. It should also be noted that molecular mass can be quickly identified by ESI with clean and simple spectra, while the structure can be directly studied using APAG with in-source oxidation. The ionization/oxidation mechanism and applications of the LS-APAG source have been further explored in the analysis of nonpolar alkanes and unsaturated fatty acids/esters. A unique [M + O - 3H](+) was observed in the case of individual alkanes (C-5-C-19) and complex hydrocarbons mixture under optimized conditions. Moreover, branched alkanes generated significant in-source fragments, which could be further applied to the discrimination of isomeric alkanes. The technique also facilitates facile determination of double bond positions in unsaturated fatty acids/esters due to diagnostic fragments (the acid/ester-containing aldehyde and acid oxidation products) generated by on-line ozonolysis in APAG mode. Finally, some examples of in situ APAG analysis by gas sampling and surface sampling were given as well. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38399]  |
| 专题 | 化学研究所_活体分析化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Ctr Mass Spectrometry Beijing, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Xiaobo,Wang, Zhenpeng,Li, Yafeng,et al. Investigation and Applications of In-Source Oxidation in Liquid Sampling-Atmospheric Pressure Afterglow Microplasma Ionization (LS-APAG) Source[J]. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY,2017,28(6):1036-1047. |
| APA | Xie, Xiaobo,Wang, Zhenpeng,Li, Yafeng,Zhan, Lingpeng,&Nie, Zongxiu.(2017).Investigation and Applications of In-Source Oxidation in Liquid Sampling-Atmospheric Pressure Afterglow Microplasma Ionization (LS-APAG) Source.JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY,28(6),1036-1047. |
| MLA | Xie, Xiaobo,et al."Investigation and Applications of In-Source Oxidation in Liquid Sampling-Atmospheric Pressure Afterglow Microplasma Ionization (LS-APAG) Source".JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 28.6(2017):1036-1047. |
入库方式： OAI收割
来源：化学研究所
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