title: [Simultaneous separation of organic acid and organic salts by electrostatic ion chromatography].
abstract: The electrostatic ion chromatographic column was prepared by coating conjugated acid salt micelles on the surface of octadecyl silica stationary phase. Pure water was used as mobile phase, and the conductance detector was connected on-line to electrostatic ion chromatograph. The conditions under which organic acid and organic salts were detected were studied. The mechanism for the above separation is discussed. Sodium benzoate and citric acid in Lichee drink were separated and determined. This method is rapid, simple with little interference and good reproducibility without any pollution since the mobile phase is water. This is an environmental friendly analytical method.
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130023, China.
authors.forename: G J
authors.initials: GJ
authors.lastname: Shen
authors.forename: R F
authors.initials: RF
authors.lastname: Yang
authors.forename: A M
authors.initials: AM
authors.lastname: Yu
mesh_terms: D001628:Beverages / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation* / Q000379:methods; D019343:Citric Acid / Q000032:analysis / Q000302:isolation & purification*; D010070:Oxalates / Q000032:analysis / Q000302:isolation & purification*; D015203:Reproducibility of Results; D012822:Silicon Dioxide; D020160:Sodium Benzoate / Q000032:analysis / Q000302:isolation & purification*; D055672:Static Electricity
chemical_list: D010070:Oxalates; D019343:Citric Acid; D012822:Silicon Dioxide; C042953:octadecyl silane-bonded silica; D020160:Sodium Benzoate