title: Isotopic separation of lithium ions by capillary zone electrophoresis.
abstract: Separation of (6)Li and (7)Li isotopes by CZE was demonstrated. The BGE contained 5 mM 4-aminopyridine, 0.9 mM oxalic acid, 0.25 mM CTAB, and 0.25% w/v Tween 20 (рН = 9.2). The running conditions were +25 kV at 30°C with indirect photometric detection at 261 nm. Under optimal experimental conditions, the analysis time was less than 21 min. Separation of Li preparations with mole fraction of (6)Li ranging from 3.44 up to 90.38% was demonstrated.
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Mikhail
authors.initials: M
authors.lastname: Kamencev
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Nina
authors.initials: N
authors.lastname: Yakimova
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Leonid
authors.initials: L
authors.lastname: Moskvin
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Irina
authors.initials: I
authors.lastname: Kuchumova
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Kirill
authors.initials: K
authors.lastname: Tkach
authors.affiliation: Institute of Chemistry, St. Petersburg State University, Saint-Petersburg, Russian Federation.
authors.forename: Yulia
authors.initials: Y
authors.lastname: Malinina
authors.affiliation: The Mayak Production Association, Ozersk, Russian Federation.
authors.forename: Oleg
authors.initials: O
authors.lastname: Tungusov
mesh_terms: D000077286:Cetrimonium; D002593:Cetrimonium Compounds; D019075:Electrophoresis, Capillary / Q000379:methods*; D007477:Ions / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D007554:Isotopes / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D057230:Limit of Detection; D008094:Lithium / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification*; D011136:Polysorbates
chemical_list: D002593:Cetrimonium Compounds; D007477:Ions; D007554:Isotopes; D011136:Polysorbates; D008094:Lithium; D000077286:Cetrimonium
keywords: Capillary electrophoresis; Isotope; Isotopic separation; Lithium