%0 Conference Proceedings %T Supramolecular–based dispersive liquid–liquid microextraction for determination of copper in soil, water and vegetable samples %A Dehghani, Malihe %A CHamsaz, Mahmod %A Arbab Zavar, Mohammad Hossein %A Farzaneh Shemirani %J نوزدهمین سمینار شیمی تجزیه ایران %D 2013