title: Rapid analysis of cation constituents of urine by capillary electrophoresis.
abstract: Capillary electrophoresis was applied for the simultaneous determination of K(+), NH(4)(+), Na(+), Ca(2+) and Mg(2+) cations in urine. The separations were carried out in electrolyte containing 7. 5 mmol/l copper(II) acetate, 15 mmol/l ethylenediamine and 2 mmol/l triethanolamine at pH 8.0, with indirect UV detection at 230 nm. All cations were well separated in less than 4 min. The results obtained by this method were comparable with ion chromatography. The proposed system is simple, rapid and does not require any preliminary treatment of the urine samples except diluting.
authors.affiliation: Department of Analytical and Environmental Chemistry, UNESCO Trace Element Institute Satellite Center, Vilnius University, Naugarduko 24, LT-2006, Vilnius, Lithuania.
authors.forename: V
authors.initials: V
authors.lastname: Olsauskaite
authors.forename: V
authors.initials: V
authors.lastname: Paliulionyte
authors.forename: A
authors.initials: A
authors.lastname: Padarauskas
mesh_terms: D002412:Cations / Q000652:urine*; D002852:Chromatography, Ion Exchange; D019075:Electrophoresis, Capillary; D006801:Humans; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002412:Cations