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http://reply.papertrans.cn/3/272/27110/27110-32.png
Submitted on: 12 April 2012.
Revised on: 14 May 2012.
Accepted on: 30 May 2012.
Revista Virtual de Quimica
Submitted on: 16 January 2015.
Revised on: 06 February 2015.
Accepted on: 11 February 2015.
Revista Virtual de Quimica---SOC BRASILEIRA QUIMICA
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Submitted on: 20 October 2003.
Revised on: 14 November 2003.
Accepted on: 11 December 2003.
Revista Virtual de Quimica---SOC BRASILEIRA QUIMICA