_1582627723 1582627723 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 12 25 2019 2 04 10.24200/amecj.v2.i04 http://journal.amecj.com/index.php/AMECJ-01/issue/view/10 Kian Azami Mehdi Aliomrani Mostafa Dehghani Mobarake A mixture of captopril nanoparticles (CAP-NPs) and ionic liquid (IL, [HMIM] [PF6]) paste on micro graphite rod (CAP-IL-MGR) and was used for separation cadmium in human serum and urine samples by micro solid phase extraction (μ-SPE). 0.01 g of CAP-NPs and 0.1 g of [HMIM] [PF6] mixed with 1 mL of acetone and mixture passed physically on micro graphite rod (MGR) at 55oC. Then, the graphite probe placed on 10 mL of human biological samples with 5 min of sonication, then cadmium ions complexed by thiol group of captopril (CAP-SH) at pH=5.5. The cadmium ions on micro probe were back extracted with 0.25 mL of nitric acid (0.5 M) which was diluted with DW up to 0.5 mL and finally, the cadmium concentration determined by ET-AAS. By optimizing of amount of captopril, the absorption capacity and recovery were obtained 132.4 mg g-1 and more than 96%, respectively. 12 25 2019 71 81 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i04.84 http://journal.amecj.com/index.php/AMECJ-01/article/view/84 http://journal.amecj.com/index.php/AMECJ-01/article/download/84/159 http://journal.amecj.com/index.php/AMECJ-01/article/download/84/159 http://journal.amecj.com/index.php/AMECJ-01/article/download/84/160