References
- Duffus , J. H. 1980 . Environmental Toxicology , London : Edwarld Arnold Publishers Ltd. .
- American Public Health Association . 1976 . American Water Works Association and Water Pollution Control Federation, Standard Methods for the Examination of Water and Waste-water, , 14th Ed. Washington
- Ross , J. T. H. 1974 . Spectrovision , 28 : 4
- Chricosta , S. , Bruno , E. and Clasadonte , M. T. 1974 . Essenze , 44 : 259 [Anal. Abstr, 29, IF4 (1975)]
- McHard , J. A. , Foulk , S. J. and Winefordner , J. D. 1979 . J. Agric. Food Chem , 27 : 1326
- Aziz-Alrahman , A. M. Unpublished Results
- Rieman , W. III and Walton , H. F. 1970 . Ion Exchange in Analytical Chemistry , Oxford : Pergamon Press .
- Samuelson , O. 1963 . Ion Exchange Separations in Analytical Chemistry , New York : J. Wiley and Sons Inc. .
- Fifield , F. W. and Kealey , D. 1975 . Principles and Practice of Analytical Chemistry , London : International Textbook Company Ltd. .
- Quenouille , M. H. 1950 . Introductory Statistics , London : Butterworths .
- Youdon , W. J. 1951 . Statistical Methods for Chemists , New York : Wiley .
- Cochran , W. G. 1963 . Sampling Techniques , New York : Wiley .
- Bevington , P. R. 1969 . Data Reduction and Error Analysis for the Physical Sciences , New York : McGraw-Hill .
- Dudas , M. J. 1974 . Atom. Absorption Newsl , 13 : 109
- Nix , J. and Goodwin , T. 1970 . At Absorption Newsl , 9 : 119
- Christian , G. D. 1969 . Anal. Chem , 41 : 24A
- Gorsuch , T. T. 1959 . Analyst , 84 : 135