Determination of impurities and counterions of pharmaceuticals by capillary electromigration methods.
The review presents a survey of recent applications of high-performance capillary electromigration methods-capillary zone electrophoresis, nonaqueous capillary electrophoresis, capillary isotachophoresis, micellar electrokinetic chromatography, microemulsion electrokinetic chromatography and capillary electrochromatography-for the determination of impurities of pharmaceuticals, including chiral impurities, for the period 2007-2013. In addition, due to the missing evaluation of the determination of counterions of pharmaceuticals by capillary electromigration methods in the last 20 years, the publications dealing with this topic since 1995 are included in this review. General aspects of both these types of applications of capillary electromigration methods in pharmaceutical analysis are discussed, and detailed experimental conditions used for determination of various chemical impurities and counterions of many particular drugs are described.
Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
Sille
S
Stěpánová
Václav
V
Kašička
D004340:Drug Contamination / Q000517:prevention & control*; D019075:Electrophoresis, Capillary / Q000379:methods*; D007477:Ions / Q000032:analysis*; D004364:Pharmaceutical Preparations / Q000032:analysis*
D007477:Ions; D004364:Pharmaceutical Preparations
Capillary electrophoresis; Chiral impurities; Drug counterions; Drug impurities; Pharmaceutical analysis