Free Access
| Issue |
Analusis
Volume 28, Number 6, July/August 2000
Nitric oxide and superoxide in biological systems
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|---|---|---|
| Page(s) | 529 - 534 | |
| Section | Original articles | |
| DOI | https://doi.org/10.1051/analusis:2000168 | |
Analusis 28, 529-534 (2000)
DOI: 10.1051/analusis:2000168
1 SIRCOB, ESA 8086 CNRS, Bâtiment Lavoisier, Université de Versailles, 45, avenue des États-Unis, 78035 Versailles Cedex, France
2 Centre d'Études du Bouchet, BP 3, 91719 Vert-le-Petit, France
(Received March 10, 2000; accepted April 27, 2000.)
Key words: Chloride ion selective electrode -- oximate ion -- reactivity -- kinetics -- yperite -- yperite analogues -- yperite hydrolysis.
© EDP Sciences, Wiley-VCH 2000
DOI: 10.1051/analusis:2000168
Use of a chloride ion selective electrode as a tool for monitoring relatively fast kinetic processes. Application to the hydrolysis of yperite analogues in presence of oximate nucleophiles
S. Pereira Rodrigues1, L. Coppée2, J. Toullec1 and G. Moutiers11 SIRCOB, ESA 8086 CNRS, Bâtiment Lavoisier, Université de Versailles, 45, avenue des États-Unis, 78035 Versailles Cedex, France
2 Centre d'Études du Bouchet, BP 3, 91719 Vert-le-Petit, France
(Received March 10, 2000; accepted April 27, 2000.)
Abstract
Experimental conditions have been designed which allowed the use of a chloride ion selective
electrode for the monitoring of reactions that proceed with a moderately fast departure of
Cl- ion, i.e. t
40 seconds, in aqueous solution. The procedure has been applied in
particular to the hydrolysis of yperite (HD) analogues (CEES, CEMS, CEPS) in aqueous
solution in presence of HEPES buffer and oximate nucleophiles. Kinetic parameters were
obtained in these conditions and the S
1 mechanism for the hydrolysis was confirmed.
Key words: Chloride ion selective electrode -- oximate ion -- reactivity -- kinetics -- yperite -- yperite analogues -- yperite hydrolysis.
© EDP Sciences, Wiley-VCH 2000