%0 Conference Proceedings %T Conductometric study of complexation reaction between 4`-nitrobenzo-15-crown-5 and Mn+2,Co+2 ,Y+3 and ZrO+2 metal cations in pure and binary mixed organic solvents %A M. Esmaeelporfarkhani %A Ronaghi, Gholam Hossein %A Arbab Zavar, Mohammad Hossein %J نوزدهمین سمینار شیمی تجزیه ایران %D 2013