caa a22 4500 445880775 CHVBK 20180317145542.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00604-010-0511-1 doi (NATIONALLICENCE)springer-10.1007/s00604-010-0511-1 Multisyringe ion chromatography with chemiluminescence detection for the determination of oxalate in beer and urine samples [Elektronische Daten] [Fernando Maya, José Estela, Víctor Cerdà] The first multisyringe-based low-pressure ion chromatographic method is presented. It is based on the use of short surfactant coated octadecyl-silica monolithic columns. As a first application, we have determined oxalate in beer and human urine via post-column chemiluminescence detection. Oxalate is separated from the sample matrix in the monolithic column by precise programmable fluid handling, and then detected by reaction with on-line generated tris(2,2′-bipyridyl)ruthenium(III). Column coating, un-coating, ion chromatography and chemiluminescence detection are quickly performed by using a simple low-pressure multi-burette. The factors influencing the separation of oxalate and its subsequent detection, including the column coating with surfactants and its stability have been studied. The chromatographic behavior of the oxalate in presence of potentially interfering species also was assessed. The method has limits of detection and quantification of 0.025 and 0.035mgL−1, respectively, a relative standard deviation of 3.1% (for 10 consecutive measurements without column re-coating) and a throughput of 48h−1. The results obtained with real samples were validated by using an enzymatic spectrophotometric test. The method is critically compared to recent methods for the determination of oxalate. Automated MSFIA system incorporating a C18 monolithic column (MC) coated with CTAB for the separation of oxolate and its post-column chemiluminescence detection Springer-Verlag, 2010 Multisyringe flow injection analysis nationallicence Monolithic columns nationallicence Surfactant coatings nationallicence Ion chromatography nationallicence Chemiluminescence nationallicence Oxalate nationallicence Urine nationallicence Beer nationallicence Maya Fernando Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut Estela José Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut Cerdà Víctor Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 33-41 0026-3672 173:1-2<33 2011 173 604 https://doi.org/10.1007/s00604-010-0511-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0511-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maya Fernando Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut NATIONALLICENCE 700 1- Estela José Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut NATIONALLICENCE 700 1- Cerdà Víctor Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, E-07122, Palma de Mallorca, Illes Balears, Spain aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 33-41 0026-3672 173:1-2<33 2011 173 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer