References
- 1993 . “The British Pharmacopoeia 1993” , London : Her Magesty's Stationary Office .
- 1990 . “The United States Pharmacopoeia” . In XXII Revision, The National Formulary XVII Edition , Rockville, MD : The United States Pharmacopeial convention .
- Sobhi , A. S. , Hassan , A. and Nashaat , A. Z. 1975 . J. Pharm. Sci. , 64 : 129
- Walash , M. , Rizk , M. , Abou-Ouf , A. and Belal , F. 1983 . Analyst , 108 : 626
- Youssef , A. F. , El Shabouri , S. R. , Mohamed , F. A. and Rageh , A. I. 1986 . J. Assoc. Off. Anal. Chem. , 69 : 513
- Taha , A. M. , El-Rabbat , N. A. , El-Kommos , M. E. and Refaat , I. H. 1983 . Analyst , 108 : 1500
- Bhongade , S. L. and Kasture , A. V. 1993 . Talanta , 40 : 1525
- Davidson , A. G. 1978 . J. Pharm. Pharmac. , 30 : 410
- Davidson , A. G. and Fadirant , E. O. 1990 . Analyst , 115 : 997
- Ragland , J. B. and Kinross-Wright , V. J. 1964 . Anal. Chem. , 36 : 1356
- White , V. R. and Frings , C. S. 1976 . Anal. Chem. , 48 : 1315
- Gifford , L. A. , Miller , J. N. , Philips , D. L. , Burns , D. T. and Bridges , J. W. 1975 . Anal. Chem. , 47 : 1699
- Li , S. and Purdy , W. C. 1991 . J. Pharm. Biomed. Anal. , 5 : 409
- Mellinger , T. J. and Keeler , C. E. 1963 . Anal. Chem. , 35 : 554
- Pesez , M. and Bartos , J. 1974 . “Colorimetric and Fluorimetric Analysis of Organic Compounds and Drugs” , p. 1930 New York : Marcel Dekker, Inc. .
- Geigy , Documenta . 1974 . “Scientific Tables” , p. 314. Basel, , Switzerland : J.R. Geigy .