Solid-phase extraction for the simultaneous preconcentration of organic (selenocystine) and inorganic [Se(IV), Se(VI)] selenium in natural waters.
This paper describes the combined use of a new preconcentration method using the Amberlite IRA-743 resin and high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry to determine simultaneously inorganic and organic selenium species in aquatic systems. The developed enrichment procedure, whose accuracy has been checked by recovery tests, is suitable for selenium speciation at environmental levels of 10 ng (Se) l(-1). The method has been applied to mineral and freshwater samples.
Bueno
Maïté
M
Laboratoire de Chimie Analytique, Bio-Inorganique et Environnement, Université de Pau et des Pays de l'Adour, UMR CNRS 5034, Helioparc, Pau, France. maite.bueno@univ-pau.fr
Potin-Gautier
Martine
M
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003553:Cystine / Q000031:analogs & derivatives* / Q000032:analysis*; D007287:Inorganic Chemicals / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods*; D016566:Organoselenium Compounds / Q000032:analysis*; D012643:Selenium / Q000032:analysis*; D014867:Water / Q000737:chemistry*
D007287:Inorganic Chemicals; D016566:Organoselenium Compounds; D014867:Water; C009226:selenocystine; D003553:Cystine; D012643:Selenium