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

Volume 5, Issue 4, December 2012, Pages 271-279

Ali Niazi; Mona Akbari; Roza Negahdari; Maryam Sarkhosh; Asiyeh Khosravi

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