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Submitted on: 08 March 2012.
Revised on: 16 April 2012.
Accepted on: 07 May 2012.
___________________ACTA CHIMICA SINICA---SCIENCE PRESS
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Submitted on: 19 August 2004.
Revised on: 09 November 2004.
Accepted on: 31 December 2004.
___________________ACTA CHIMICA SINICA---SCIENCE PRESS
Submitted on: 20 April 2010.
Revised on: 17 June 2010.
Accepted on: 28 June 2010.
___________________ACTA CHIMICA SINICA---SCIENCE PRESS
Submitted on: 16 December 1999.
Revised on: 16 January 2000.
Accepted on: 26 February 2000.
___________________ACTA CHIMICA SINICA---SCIENCE PRESS
Submitted on: 21 November 1998.
Revised on: 25 December 1998.
Accepted on: 26 January 1999.
___________________ACTA CHIMICA SINICA---SCIENCE PRESS
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