REFERENCES
- Reynolds J. E. F. Gastro-intestinal agents, in The Extra Pharmacopoeia. 31st ed., Royal Pharmaceutical Society, London 1996; 1191–1247
- Maurer H. H. J. Chromatogr 1990; 531: 369–405
- Wei J. Q., Wei J. L., Zhou X. T. J. Chromatogr 1991; 552: 103–111
- Gau Y. S., Sun S. W., Chen R. R. L. J. Liq. Chromatogr 1995; 18: 2373–2382
- US. Pharmacopoeial Convention Board of Trustees, Validation of compendial methods. The United States Pharmacopoeia. 22nd ed., Author, RockvilleMD 1990; 1711–1712
- Box G. E. P., Hunter W. G., Hunter J. S. Factorial designs at two levels, in Statistics for Experimenters, G. E. P. Box, W. G. Hunter, J. S. Hunter. Wiley-Interscience, New York 1978; 306–351
- Massart D. L., Dijkstra A., Kaufman L. Evaluation and Optimisation of Laboratory Methods and Analytical Procedures. Elsevier, Amsterdam 1978
- Morgan E., Burton K. W., Church P. A. Chemom. and Intell. Lab. Sys. 1989; 5: 283–302
- Hsu H. C., Chien C. S. J. Food Drug Anal 1994; 2: 161–176