TY - JOUR ID - 139800 TI - A Green Approach for Micro Determination of Silver(I) in Water and Soil Samples Using Vitamin C JO - Analytical and Bioanalytical Chemistry Research JA - ABCR LA - en SN - AU - Adnan Azooz, Ebaa AU - Abd Wannas, Fatimah AU - Kadhim Ridha, Rana AU - Kadhim Jawad, Shawket AU - Al-Mulla, Emad Abbas Jaffar AD - Ministry of Education, The Gifted Students' School in Al-Najaf, Iraq AD - Chemistry Department, Faculty of Education for Women, University of Kufa, Najaf Governorate, Iraq AD - Department of Dairy Science and Technology, College of Food Sciences, Al-Qasim Green University, Iraq AD - Pathological Analysis Techniques, Faculty of Health and Medical Techniques, Al-Furat Al-Awsat Technical University, Kufa, An-Najaf, Iraq Y1 - 2022 PY - 2022 VL - 9 IS - 2 SP - 133 EP - 140 KW - Cloud point extraction KW - Silver KW - Solvation method KW - Solvent extraction KW - Vitamin C DO - 10.22036/abcr.2021.277834.1609 N2 - A cloud point extraction/solvation method (CPE-SM) based on the use of vitamin C as a chelating agent was developed for the separation and determination of silver in environmental samples. TritonX-100 was used to extract silver ions in aqueous solutions after forming solvation species with vitamin C in the presence of salting-out (0.5 mol L-1 KNO3) at 90 ̊C for 10 minutes. This study evaluated the main parameters affecting the CPE-SM method, such as the kind and concentration of the salting-out, organic reagents, silver ion, temperature, heating time, and volume of surfactant. Under the optimized experimental factors, the calibration curve was linear in the range (0.1 -10 μg/L). The relative standard deviation (RSD) was 1.1-2.9% for n:5 at 1,4,9 μg L-1, a low limit of detection (LOD), and a limit of quantification (LOQ) of 0.035, 0.116 μg L-1 respectively. The accuracy of the method was evaluated by two independent techniques (flame atomic absorption spectrometry – FAAS, and spectrophotometry - using dithizone as a complexing agent). The CPE-SM technique was used to preconcentrate and determine the silver ions in river water, tap water, and soil samples, and the results were favorable and good. UR - https://www.analchemres.org/article_139800.html L1 - https://www.analchemres.org/article_139800_9064944a5f02eef1670a348be103b98f.pdf ER -