REFERENCES
- Bell , R. G. 1991 . J. of Pharm. & Biomed. Analysis , 10–12 ( 9 ) : 843 – 847 .
- Dyck , E. D. and Vadas , P. 1997 . Allergy , 52 : 870 – 871 .
- Gallagher , J. B. , Love , P. W. and Knotts , L. 1982 . J. Assoc. Off. Anal. Chem. , 65 ( 5 )
- Brewer , G. A. 1980 . Analytical Profiles of Drug Substances Edited by: Florey , K. Vol. 9 , 1 – 69 . New York : Academic Press .
- 1980 . The British Pharmacopoeia 1980 Vol. I, II , 42 – 43 . London : HMSO .
- Kjeldsen , N. J. , Beezer , A. E. and Miles , R. J. 1989 . J. Pharm. Biomed. Anal. , 7 ( 7 ) : 865 – 869 .