title: Analysis of organic and inorganic selenium anions by ion chromatography-inductively coupled plasma atomic emission spectroscopy.
abstract: We report analysis of both inorganic and amino acid forms of selenium by ion chromatography with inductively coupled plasma atomic emission spectroscopic detection. Three chromatographic systems are compared; effects of representative sample matrices on the separations are investigated. We are unable to resolve selenate and seleno-cystine using the Dionex AS4A column. Elution of seleno-cystine and seleno-cysteine is strongly suppressed in samples of bacterial cell extract matrix analyzed with the Dionex AS10 column; this interference is not observed with the Dionex AS11 column. Synthetic sea water sample matrix has little effect on analytical results. Quantitation parameters are reported.
authors.affiliation: Department of Chemistry, Tennessee Technological University, Cookeville 38505, USA.
authors.forename: J J
authors.initials: JJ
authors.lastname: Harwood
authors.forename: W
authors.initials: W
authors.lastname: Su
mesh_terms: D000596:Amino Acids / Q000032:analysis; D012044:Regression Analysis; D012623:Seawater / Q000032:analysis; D012643:Selenium / Q000032:analysis*; D018036:Selenium Compounds / Q000032:analysis*; D013054:Spectrophotometry, Atomic
chemical_list: D000596:Amino Acids; D018036:Selenium Compounds; D012643:Selenium