Submitted on: 06 December 2012.
Revised on: 03 March 2013.
Accepted on: 20 March 2013.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
http://reply.papertrans.cn/1/52/5142/5142-12.png
Submitted on: 31 July 1998.
Revised on: 26 October 1998.
Accepted on: 08 November 1998.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
Submitted on: 06 April 2020.
Revised on: 24 July 2020.
Accepted on: 10 September 2020.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
Submitted on: 04 October 2015.
Revised on: 17 December 2015.
Accepted on: 29 December 2015.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
Submitted on: 13 August 2019.
Revised on: 06 October 2019.
Accepted on: 28 October 2019.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
http://reply.papertrans.cn/1/52/5142/5142-17.png
Submitted on: 14 February 2018.
Revised on: 25 April 2018.
Accepted on: 19 May 2018.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
Submitted on: 11 April 2014.
Revised on: 22 June 2014.
Accepted on: 05 August 2014.
___________________Chemistry Journal of Moldova---ACAD SCIENCES MOLDOVA, INST CHEMISTRY
http://reply.papertrans.cn/1/52/5142/5142-20.png