title: Enantioselective analysis of amisulpride in pharmaceutical formulations by means of capillary electrophoresis.
abstract: A capillary electrophoretic method has been developed for the enantioselective analysis of amisulpride in pharmaceutical formulations, using beta-cyclodextrin sulfate as the chiral selector. Several parameters, such as cyclodextrin type and concentration, buffer concentration and pH and capillary temperature were investigated for method optimisation. Baseline enantioseparation of the racemic compound was achieved in less than 10 min using a fused silica capillary (50 microm i.d. and 33.0, 8.5 cm, total and effective length, respectively), filled with a background electrolyte consisting of a 10mM citrate buffer at pH 3.5 supplemented with 0.22% (w/v) beta-cyclodextrin sulfate at 20 degrees C and applying a voltage of +15 kV. Formulation analysis was carried out after analyte extraction by methanol. The method was fully validated, with good results in terms of precision, selectivity, accuracy and amount of drug found with respect to the label claim. Thus, the method seems to be suitable for the enantiomeric analysis of amisulpride in pharmaceutical formulations.
authors.affiliation: Department of Pharmaceutical Sciences, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Musenga
authors.forename: Roberto
authors.initials: R
authors.lastname: Mandrioli
authors.forename: Emanuele
authors.initials: E
authors.lastname: Morganti
authors.forename: Salvatore
authors.initials: S
authors.lastname: Fanali
authors.forename: Maria Augusta
authors.initials: MA
authors.lastname: Raggi
mesh_terms: D000077582:Amisulpride; D014150:Antipsychotic Agents / Q000032:analysis* / Q000737:chemistry; D002021:Buffers; D002951:Citrates / Q000737:chemistry; D004304:Dosage Forms; D019075:Electrophoresis, Capillary / Q000592:standards; D006863:Hydrogen-Ion Concentration; D000432:Methanol / Q000737:chemistry; D015203:Reproducibility of Results; D012822:Silicon Dioxide / Q000737:chemistry; D013237:Stereoisomerism; D013431:Sulfates / Q000737:chemistry; D013469:Sulpiride / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods* / Q000592:standards; D013696:Temperature; D047392:beta-Cyclodextrins / Q000737:chemistry
chemical_list: D014150:Antipsychotic Agents; D002021:Buffers; D002951:Citrates; D004304:Dosage Forms; D013431:Sulfates; D047392:beta-Cyclodextrins; D012822:Silicon Dioxide; D013469:Sulpiride; D000077582:Amisulpride; D000432:Methanol