Photochemical vapor generation of selenium: mechanism and applications
2020
Abstract Selenium was the first reported element that could be converted into its volatile compounds via photochemical vapor generation (photo-CVG) process before its atomic spectrometric detection. Photo-CVG is a newly emerging vapor generation technique, offering its inherent advantages of matrix interferences eliminated and high vapor efficiency etc., photo-CVG has been combined with various methods for selenium determination and mechanism exploration. Herein, we summarize the development of selenium in photo-CVG from the first report in 2003, the mechanism of selenium with or without TiO2 were discussed and its applications for selenium determination, speciation analysis and prereduction were summarized.
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