1. Hsieh FYL, Cai JC and Henion J, Determination of trace impurities of peptides and alkaloids by capillary electrophoresis-ion spray mass spectrometry, J. Chromatogr., 679 (1994) 206–211.
2. Okafo GN and Camilleri P, Micellar electrokinetic capillary chromatography of amoxycillin and related molecules, Analyst, 117 (1992) 1421–1424.
3. Altria KD, Rogan MM and Finlay G, Electrokinetic separation techniques — a review, Chrom. and Analysis, Aug (1990) 9–14.
4. Altria KD and Filbey SD, The application of experimental design to the robustness testing of a method for the determination of drug related impurities by capillary electrophoresis, Chromatographia, 39 (1994) 306–310.
5. Shafaati A and Clark BJ, Development of a capillary zone electrophoresis method for atenolol and its related impurities in a tablet preparation, Anal. Proceedings, 30 (1993) 481–483.