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Scientific article
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The formation constants of dimethylthallium(III)-glutathione complexes in aqueous solution

Published inJournal of Inorganic Biochemistry, vol. 73, no. 1-2, p. 17-29
Publication date1999
Abstract

The complexes formed in the dimethylthallium(III) (Me2Tl+), glutathionate (EGC3−) and hydrogen ion system in aqueous solution at 37 °C and I = 150 mmol dm−3 (NaCl) have been characterised by means of glass-electrode potentiometry. Glutathione protonation constants were found to be 9.123 ± 0.007, 17.42 ± 0.01, 20.78 ± 0.02, and 22.93 ± 0.02. Formation constants for the complexes [(Me2Tl)EGCH]− and [(·Me2Tl) EGC]2− were found to be 11.19 ± 0.03 and 2.39 ± 0.02, respectively. Particular attention has been paid to the evaluation of the effect of possible systematic errors on the constant values determined. Reliable standard deviation estimations have been made by applying a Monte Carlo calculation technique.

Citation (ISO format)
GARCÍA BUGARÍN, Mercedes, FILELLA, Montserrat. The formation constants of dimethylthallium(III)-glutathione complexes in aqueous solution. In: Journal of Inorganic Biochemistry, 1999, vol. 73, n° 1-2, p. 17–29. doi: 10.1016/S0162-0134(98)10086-7
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ISSN of the journal0162-0134
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