Development of a CZE method for the quantification of pseudoephedrine and cetirizine.
Pseudoephedrine and cetirizine have been combined in dosage forms with more therapeutic benefits when compared with single-drug treatment. The current manuscript reports the development of the first capillary zone electrophoresis (CZE) assay method for that combination. The effects of pH and buffer concentration on resolution, noise, migration time and peak area were examined employing experimental design approach. The analytes were electropherographed into a 50.2 cm-long and 50 µm i.d. fused-silica capillary column using 10 mmol/L borate at pH 8.3 with a potential of 25 kV at 25°C and UV detection at 214 nm. The method was successfully validated in order to verify its suitability for pharmaceutical analysis for the purposes of quality control. Over previous high-performance liquid chromatographic methods, the current CZE method features the benefits of the use of cost-effective electrolyte, besides high sample throughput (11 samples/h). Furthermore, other analytical results including linear dynamic ranges, recovery (96.9-98.1%), intra- and interday precision (relative standard deviation ≤ 1.70%) as well as the limits of detection and quantification (≤2.65 µg/mL) were all satisfactory for the intended purpose.
Department of Chemistry, College of Science, King Faisal University, PO Box 400, Hofuf 31982, Saudi Arabia.
Ahmed O
AO
Alnajjar
Department of Chemistry, College of Science, King Khalid University, PO Box 9004, Abha 61321, Saudi Arabia abubakridris@hotmail.com.
Abubakr M
AM
Idris
D017332:Cetirizine / Q000032:analysis*; D003362:Cost-Benefit Analysis; D019075:Electrophoresis, Capillary / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D054199:Pseudoephedrine / Q000032:analysis*; D015203:Reproducibility of Results
D054199:Pseudoephedrine; D017332:Cetirizine