Study on Atomic Fluorescence Spectrometry Excited by Synchrotron Radiation |
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| Authors: | Jia-jia Guo Wu-er Gan Guo-bin Zhang b and Qing-de Su a |
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| Institution: | Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230027, China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | A novel analysis approach using atomic fluorescence excited by synchrotron radiation is presented.A system for synchrotron radiation-atomic fluorescence spectrometry is developed, and experimental conditions such as flow rate, analyte acidity, concentration of pre-reducing and hydrogenation system are optimized. The proposed method is successfully applied to get an excitation spectrum of arsenic. Seven of ten primary spectral lines, four of which have never been reported by means of atomic fluorescence spectrometry, agree well with the existing reports.The other three are proposed for the first time. Excitation potentials and possible transitions are investigated. Especially for the prominent line at 234.99 nm, the mechanism of generation is discussed and a model of energy transition processes is proposed. |
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| Keywords: | Synchrotron radiation Atomic fluorescence Arsenic Energy transition |
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