Submitted on: 30 September 2001.
Revised on: 11 November 2001.
Accepted on: 23 December 2001.
___________________Chemosensors---MDPI
http://reply.papertrans.cn/1/52/5172/5172-32.png
Submitted on: 24 April 2009.
Revised on: 14 July 2009.
Accepted on: 09 September 2009.
___________________Chemosensors---MDPI
Submitted on: 04 February 2009.
Revised on: 25 February 2009.
Accepted on: 22 April 2009.
___________________Chemosensors---MDPI
http://reply.papertrans.cn/1/52/5172/5172-35.png
http://reply.papertrans.cn/1/52/5172/5172-36.png