Abstract
We have developed an UV/nano-TiO2 vapor generation (VG) device that when coupled between a chromatographic column and an ICP mass spectrometer provides a simple and sensitive hyphenated method for the determination of Se(IV) and Se(VI) without the need to use conventional chemical VG techniques. Because our proposed VG device allows both Se(IV) and Se(VI) species in the column effluent to be converted on-line into volatile Se products, which are then measured directly by the ICPMS, the safety risks and the probability of contamination arising from the use of additional chemicals are both low. To achieve the maximum signal intensity, we optimized a number of the operating parameters of the UV/nano-TiO2 VG device, including the acidity, the amounts of TiO2 and formic acid, and the length of the reaction coil, with respect to their effects on the reduction efficiency of the analyte species. This hyphenated method achieves excellent detection limits-0.06 and 0.03 ng mL(-1) for Se(IV) and Se(VI), respectively-because of the high efficiencies of the conversions of Se(IV) and Se(VI) to their respective volatile products and the lower blank level achieved, relative to those of other traditional systems. In addition, because the convers...Continue Reading
References
Nov 1, 1992·Archives of Environmental Contamination and Toxicology·M CraneS Watson
Jun 1, 1994·Toxicology Letters·I de VeerH Rüden
Mar 1, 1997·The Analyst·M J AhmedM I Karayannis
Mar 3, 1999·Ecotoxicology and Environmental Safety·A D Lemly
Apr 18, 2001·The Science of the Total Environment·Y Zhang, W T Frankenberger
Jan 5, 2002·Fresenius' Journal of Analytical Chemistry·S SchermerJ A Broekaert
Apr 5, 2003·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Eduardo BoleaJuan R Castillo
Citations
Jan 20, 2007·Analytical and Bioanalytical Chemistry·Yihua HeRalph E Sturgeon
Mar 3, 2007·Analytical and Bioanalytical Chemistry·Mariana A VieiraRalph E Sturgeon
Apr 17, 2007·Analytical and Bioanalytical Chemistry·Chuan-Liu Wu, Yi-Bing Zhao
Jul 17, 2013·Journal of Chromatography. a·Tsung-Ting ShihYuh-Chang Sun
Jul 23, 2013·Chemical Reviews·Mostafa KhajehKamran Dastafkan
Sep 26, 2013·Analytical Chemistry·Tsung-Ting ShihYuh-Chang Sun
Mar 15, 2013·Analytical Chemistry·Zhenli ZhuShenghong Hu
Mar 3, 2012·Analytical Chemistry·Huamin LiQiuquan Wang
Nov 17, 2009·Journal of Chromatography. a·Kuan-ju ChenYuh-chang Sun
Jan 11, 2008·Journal of Chromatography. a·Yongguang YinGuibin Jiang
Jan 15, 2016·The Analyst·Yuelong WangDeyuan Qin
Jan 3, 2007·Journal of Mass Spectrometry : JMS
Feb 19, 2010·Analytical and Bioanalytical Chemistry·Christophe R QuételKonstantin I Hadjiivanov
Apr 3, 2014·The Analyst·Yu WangChengbin Zheng
Dec 14, 2011·The Analyst·Xiaoling HouYi Lv
Apr 7, 2010·Analytical Chemistry·Chengbin ZhengXiandeng Hou
Oct 23, 2018·Analytical Chemistry·Ying YuYing Gao
Feb 6, 2019·Analytical Chemistry·Yonggang DingYing Gao