Abstract
A novel method based on CE with precolumn derivatization and direct UV detection for the determination of thiodiglycol (TDG), TDG sulfoxide, and TDG sulfone in water samples was developed. The lack of a UV chromophore of target analytes was overcome by derivatization with phthalic anhydride. The reactant concentrations, as well as the derivatization dependence on heating temperature and time, were carefully investigated. The baseline separation of three derivatives was achieved in less than 8 min by applying a simple BGE composed of a 30 mM borate buffer at pH 8.5. Several parameters affecting the separation efficiency (buffer pH and concentration, capillary temperature, and applied voltage) were evaluated. Calibration curves of all compounds showed good linear correlations (R(2) > 0.9994). The LODs of the TDG and its oxidation products were in the range of 98-154 ng/mL. The precision tests resulted in RSDs for migration times and peak areas of less than 1.2 and 3.6%, respectively. The developed method was successfully applied for the analysis of TDG and oxidation products in seawater, utilizing the carbon aerogel-based adsorbents for sample purification and concentration. Additionally, the method has the potential to be transf...Continue Reading
References
Aug 24, 1999·Journal of Chromatography. a·E W HooijschuurU A Brinkman
Dec 10, 1999·Environmental Health Perspectives·N B MunroV Hauschild
Dec 22, 1999·Journal of Chromatography. a·R W Read, R M Black
Jan 5, 2005·Journal of Chromatography. a·Deepak PardasaniD K Dubey
Jan 12, 2005·Journal of Chromatography. a·Isaac OhsawaYasuo Seto
Apr 30, 2005·Analytical Chemistry·Deepak PardasaniD K Dubey
Nov 28, 2008·Electrophoresis·Joseph P HutchinsonPaul R Haddad
Jan 16, 2009·Electrophoresis·Andrus SeimanMihkel Kaljurand
Oct 17, 2009·Toxicological Sciences : an Official Journal of the Society of Toxicology·Michael P ShakarjianJeffrey D Laskin
Jan 25, 2011·Journal of Chromatography. a·Petr KubáňMihkel Kaljurand
Apr 1, 2011·Journal of Chromatography. a·Petr KubáňMihkel Kaljurand
Sep 12, 2012·Electrophoresis·Eric T da CostaClaudimir Lucio do Lago
Jan 23, 2013·Analytical Chemistry·Thanh Duc MaiPeter C Hauser
Mar 23, 2013·Journal of Chromatography. a·Urs C Meier
May 21, 2013·Electrophoresis·Jorge SáizCarmen García-Ruiz
May 17, 2014·Analytical Chemistry·Stanisław PopielPaula Vanninen
Citations
Jan 4, 2017·Electrophoresis·Heidi LeesMihkel Kaljurand
Mar 14, 2018·Critical Reviews in Analytical Chemistry·Zygfryd WitkiewiczJavier Quagliano
Aug 2, 2017·Electrophoresis·Alain Wuethrich, Joselito P Quirino
Dec 9, 2020·Analytical Methods : Advancing Methods and Applications·Piia JõulMaria Kuhtinskaja