Abstract
Chelation studies of cobalt(III) with 1,2 bis(beta-aminoethoxy)ethane N,N,N',N' sodium sulfonate triacetic acid (ASTA) were performed. The results showed the effectiveness of ASTA as a chelating agent by using: molar ratio, continuous variation and slope ratio methods. Stable complex 1∶1 was formed at pH from 6.0 to 10.5. Solutions of Co-ASTA chelate of different molar ratios at pH 6.5 and 8.0 were irradiated by different gamma-radiation doses. The results showed a linear decrease of absorbance with gamma-radiation dose which can be utilized as a dosimeter for low dose rate measurement in the range studied. A proposed radiolytic mechanism is discussed. The degradation of the ASTA ligand has been related to hydroxyl radical attack.
References
S. Igrashi, T. Okoochi, J. Environ. Sci. Health, A 14 (1979) 337.
S. K. Tandon, T. R. Behari, Bull. Environ. Contamin. Toxicol., 30 (1983) 552.
R. Belcher, D. Betteridge, L. Mietes, Analytical Application of EDTA and Related compounds, Pergamon Press, New York, 1982.
M. B. Hafez, These de Doctorate es Science, No. 322, Faculte de Science d'Orsay, France, 1968.
M. S. Yacoub, Thesis for PhD, Military Technical College, Cairo, 1990.
E. G. Tombropoulos, W. J. Bair, J. F. Park, Health Phys., 16 (1969) 333.
G. Schwarzenbach, H. Flaschka, Complexometric Titrations, English Ed., London, 1968.
A. I. Vogel, A Textbook of Quantitative Inorganic Analysis, 5th, Longman, London, 1979.
R. V. Dilts, Analytical Chemistry: Methods of Separation, D. Van Nostrand Company, New York, 1974.
M. B. Hafez, F. I. Said, M. T. M. Zaki, R. Aqasmi, Radiochem. Radioanal. Lett., 52 (1982) 215.
M. B. Hafez, N. Hafez, J. Radioanal. Nucl. Chem., 86 (1984) 185.
M. B. Hafez, A. G. Abdel-Rehim, Isotopenpraxis, 21 (1985) 213.
M. B. Hafez, F. I. A. Saiid, Nucleonika, 30 (1987) 17.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
El-Dessouky, M.M., Abdel-Raouf, M.W. Radiolysis of cobalt(III)-1,2 bis(beta-aminoethoxy)ethane N,N,N',N' sodium sulfonate triacetic acid chelate. J Radioanal Nucl Chem 229, 195–197 (1998). https://doi.org/10.1007/BF02389475
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02389475