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Two examples of rapid and simple drug analysis in pharmaceutical formulations using capillary electrophoresis: Naphazoline, dexamethasone and benzalkonium in nose drops and nystatin in an oily suspension
Author(s) -
Raith Klaus,
Althoff Eva,
Banse Jutta,
Neidhardt Hiltrud,
Neubert Reinhard H. H.
Publication year - 1998
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150191618
Subject(s) - chromatography , capillary electrophoresis , benzalkonium chloride , natamycin , nystatin , chemistry , antibiotics , biochemistry , food science
Capillary electrophoresis is a versatile tool in pharmaceutical analysis. In the course of a revision of the “Standardrezepturen”, a German formula of standard dispensings for preparation in pharmacies, this technique has been applied to drug analysis in pharmaceutical formulations. The present paper deals with two different examples. First, naphazoline, dexamethasone and the preservative benzalkonium are quantified in nose drops without any sample preparation. Second, the antifungal antibiotic nystatin is quantified using nonaqueous capillary electrophoresis in methanol after sample preparation from an oily suspension.