New electrolyte systems for capillary zone electrophoresis of metal cations and non-ionic organic compounds

Thesis/Dissertation · Mon Jun 19 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/108134· OSTI ID:108134

Shi, Youchun ^[1]

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1. Iowa State Univ., Ames, IA (United States)

Excellent separations of metal ions can be obtained very quickly by capillary electrophoresis provided a weak complexing reagent is incorporated into the electrolyte to alter the effective mobilities of the sample ions. Indirect photometric detection is possible by also adding a UV-sensitive ion to the electrolyte. Separations are described using phthalate, tartrate, lactate or hydroxyisobutyrate as the complexing reagent. A separation of twenty-seven metal ions was achieved in only 6 min using a lactate system. A mechanism for the separation of lanthanides is proposed for the hydroxyisobutyrate system.

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 108134
• Report Number(s): IS-T-1740; ON: DE96000217; TRN: 95:007083
• Resource Relation: Other Information: TH: Thesis (Ph.D.); PBD: 19 Jun 1995
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ELECTROPHORESIS
REACTION KINETICS
METALS
SEPARATION PROCESSES
CATIONS
ORGANIC COMPOUNDS
PH VALUE
AMMONIUM COMPOUNDS
SURFACTANTS
ACETONITRILE
ELECTRIC POTENTIAL
RARE EARTHS
LACTATES
TARTRATES
CARBOXYLIC ACID SALTS
PHTHALATES