Submitted on: 14 November 2013.
Revised on: 30 January 2014.
Accepted on: 12 February 2014.
___________________Chemistry Africa-A Journal of the Tunisian Chemical Society
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Submitted on: 11 July 2020.
Revised on: 03 September 2020.
Accepted on: 21 October 2020.
___________________Chemistry Africa-A Journal of the Tunisian Chemical Society
Submitted on: 25 December 2000.
Revised on: 21 February 2001.
Accepted on: 18 March 2001.
___________________Chemistry Africa-A Journal of the Tunisian Chemical Society
Submitted on: 15 March 2024.
Revised on: 12 May 2024.
Accepted on: 04 June 2024.
___________________Chemistry Africa-A Journal of the Tunisian Chemical Society
Submitted on: 28 August 2014.
Revised on: 14 December 2014.
Accepted on: 20 January 2015.
___________________Chemistry Africa-A Journal of the Tunisian Chemical Society