فهرست مقالات منا اکبری مقاله 1 - Preconcentration based dispersive liquid-liquid microextraction for spectrophotometric determination of zinc in natural water and human blood after multivariate optimization based on Box-Behnken design Ali Niazi Mona Akbari Roza Negahdari Maryam Sarkhosh Asiyeh Khosravi Journal of the Iranian Chemical Research , شماره 5 , سال 5 , پاییز 2012