فهرس المقالات Human blood sample حرية الوصول المقاله صفحة الملخص نص كامل 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