_1603473520 1603473520 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 30 2020 3 03 10.24200/amecj.v3.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/15 Ehsan Zolfonoun Dispersive liquid–liquid microextraction coupled with UV–Vis spectrophotometry was applied for the determination of zirconium in aqueous samples. In this method a small amount of chloroform as the extraction solvent was dissolved in pure ethanol as the disperser solvent, then the binary solution was rapidly injected by a syringe into the water sample solution containing Zr(IV), xylenol orange and cetyltrimethylammonium bromide. The formed ion-associate was extracted into the fine chloroform droplets. The detection limit for Zr(IV) was 0.010 µg mL−1. The precision of the method, evaluated as the relative standard deviation obtained by analyzing of 10 replicates, was 2.7 %. The practical applicability of the developed method was examined using natural waters and ceramic samples. 09 27 2020 18 24 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v3.i03.107 http://journal.amecj.com/index.php/AMECJ-01/article/view/107 http://journal.amecj.com/index.php/AMECJ-01/article/download/107/219 http://journal.amecj.com/index.php/AMECJ-01/article/download/107/219 http://journal.amecj.com/index.php/AMECJ-01/article/download/107/226