References
- Cohen E. M. J. Pharm. Sci. 1971; Vol 60(11)1702–04
- Metzler C. M, Effring G. L., McEwan A. J. J. Pharm. Sci. 1974
- Fisher R. A., Yates F. Statistical tables for biological agricultural and medical research. 6th edition. Edinburgh Oliver and Boyd. 1970
- Varian Associates Inc., Palo Alto, California
- Model 3390A. Hewlett Packard, Avondale, Pennsylvania
- Grade B. P. Merck Sharp and Dohme. Hoddesdon, England
- Prepared from Analytical Reagent grade. BDH Chemicals Ltd. Poole, England
- HPLC Grade, Fisons Scientific Apparatus. Loughborough, Leics., England
- HPLC Technology Ltd., Wilmslow, CheshireEngland