Submitted on: 17 December 2015.
Revised on: 23 January 2016.
Accepted on: 26 February 2016.
___________________FlatChem---ELSEVIER
Submitted on: 08 January 2015.
Revised on: 07 March 2015.
Accepted on: 30 April 2015.
___________________FlatChem---ELSEVIER
http://reply.papertrans.cn/1/99/9826/9826-33.png
http://reply.papertrans.cn/1/99/9826/9826-34.png
Submitted on: 30 May 2001.
Revised on: 23 August 2001.
Accepted on: 05 October 2001.
___________________FlatChem---ELSEVIER
http://reply.papertrans.cn/1/99/9826/9826-36.png