色谱2016，Vol.34Issue(3)：306-313,8.DOI:10.3724/SP.J.1123.2015.10045
液相色谱-质谱法分析黑碳的分子标志物--苯多羧酸和硝基苯多羧酸
Analysis of benzene polycarboxylic acids and nitro-benzene polycarboxylic acids as molecular tracers of black carbon by using liquid chromatography-mass spectrometry
摘要
Abstract
The benzene polycarboxylic acid( BPCA)method is an important molecular marker method for black carbon and dissolved black carbon quantification while the separation and quantification of benzene polycarboxylic acids and nitro-benzene polycarboxylic acids are the key process. In order to use mass spectrometer to solve the issue of identification of benzene polycarboxylic acids and nitro-benzene polycarboxylic acids due to the lack of the standards of some of the target compounds,a liquid chromatography-mass spectrometry method was pro-posed. It made the experimental procedures easier and faster than using the gas chromatogra-phy mass spectrometry,and would promote the use of the BPCA method. A Phenomenex Syn-ergi Polar RP column was used. The digestion productions of black carbon and dissolved black carbon were gradiently eluted by the mobile phases of 0. 5%( v/v)aqueous formic acid solution and methanol with the flow rate of 0. 5 mL/min at 35 ℃. The determination was conducted by an ion trap mass spectrometer in negative electrospray ionization( ESI)mode under full scan and selected ion monitoring ( SIM ) modes. Simultaneously the three-dimensional ultraviolet spectra were collected by a photo diode array detector. The LC-MS method was proved to be suitable for the analysis of environmental black carbon and dissolved black carbon.关键词
液相色谱-质谱/苯多羧酸/硝基苯多羧酸/黑碳/溶解态黑碳Key words
liquid chromatography-mass spectrometry(LC-MS)/benzene polycarboxylic acids/nitro-benzene polycarboxylic acids/black carbon/dissolved black carbon分类
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黄国培,陈颖军,田崇国,刘莺..液相色谱-质谱法分析黑碳的分子标志物--苯多羧酸和硝基苯多羧酸[J].色谱,2016,34(3):306-313,8.基金项目
2011年度中国科学院研究生科技创新与社会实践专项基金．@@@@Technology Innovation and Social Practice Program of University of Chinese Academy of Sciences for Grad-uate Students in 2011． （）
