_1593412394 1593412394 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 07 19 2019 2 2 10.24200/amecj.v2.i2 http://journal.amecj.com/index.php/AMECJ-01/issue/view/8 Asian Khaligh A novel task-specific ionic liquid (TSILs) was used for highly sensitive extraction and separation of nickel and cadmium in olive oil by thermal ultrasound-assisted dispersive multiphasic microextraction (TUSA-DMPμE). By proposed method, a mixture containing of hydrophilic TSILs (α- Cyano-4-hydroxycinnamic acid diethylamine; [CHCA] [DEA] and 1-(2-Hydroxyethyl)-3-methylimidazolium tetrafluoroborate; [HEMIM][BF4]) as a complexing and extracting solvent, acetone as a dispersant of TSILs was added to diluted olive oil with n-hexane containing Cd (II) and Ni (II) that was already complexed by TSILs in 60OC at pH 6.0-7.5. After optimized conditions, the enrichment factor (EF), Linear range (LR) and limit of detection (LOD) were obtained (19.3; 19.6), (5.0- 415 μg L-1; 2.7- 92 μg L-1) and (1.3 μg L-1;  0.6 μg L-1) with [CHCA] [DEA] and (13.7; 14.2), (7.5- 600 μg L-1; 3.6- 128 μg L-1) and (2.2 ng L-1; 0.9 μg L-1) with [HEMIM][BF4] for Ni and Cd ions in olive  samples respectively. 06 20 2019 55 64 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i2.64 http://journal.amecj.com/index.php/AMECJ-01/article/view/64 http://journal.amecj.com/index.php/AMECJ-01/article/download/64/101 http://journal.amecj.com/index.php/AMECJ-01/article/download/64/101 http://journal.amecj.com/index.php/AMECJ-01/article/download/64/103 http://journal.amecj.com/index.php/AMECJ-01/article/download/64/113