Abstract
For the selective extraction of silver, a cloud point extraction (CPE) procedure was developed. After synthesizing the solvation species through the reaction of silver ions with 2, 4-dimethyl pentane-3-one (2,4 DMP), the salting-out agent (0.4 mol L-1 NaNO3) was added at 35 °C and, after 10 min, Triton X-114 was used to separate silver ions from aqueous solution. The type and quantity of salting-out agent, silver ion, temperature, heating time, and surfactant volume were all examined as important factors determining the CPE. The analytical curve in the 0.1-100 μg L-1 Ag range was straight at optimal conditions. The detection limit (LOD), quantification limit (LOQ), and enrichment factor (E) were 0.05 µg L-1, 0.15 µg L-1, and 200, respectively. The relative standard deviation (RSD) was estimated as 0.2-3.9% (n = 5) in relation to 1, 40, and 80 μg L-1 Ag. Flame atomic absorption spectrometry and spectrophotometry exploiting dithizone were used to assess the CPE accuracy. The proposed approach was then applied to river water, rain water and sand samples.
Publisher
Brazilian Journal of Analytical Chemistry
Cited by
12 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Cloud point extraction coupled HPLC for a green downstream process and quantification of 1,9β,17,21-tetrahydoxy-4-methyl-19-nor-9β-pregna-1,3,5(10)-trien-11,20-dione and 1,9β,17,20β,21-pentahydoxy-4-methyl-19-nor-9β-pregna-1,3,5(10)-trien-11-one obtained by microbial biotransformation of cortisone;Sustainable Chemistry and Pharmacy;2024-02
2. Assessing the Greenness and Environmental Friendliness of Analytical Methods: Modern Approaches and Recent Computational Programs;Critical Reviews in Analytical Chemistry;2024-01-19
3. Nanoparticles-assisted Wound Healing: A Review;Nano Biomedicine and Engineering;2023-12
4. Recent innovations in cloud point extraction towards a more efficient and environmentally friendly procedure;TrAC Trends in Analytical Chemistry;2023-07
5. Air-assisted dual-cloud point extraction coupled with flame atomic absorption spectroscopy for the separation and quantification of zinc in pregnant women’s serum;Journal of the Iranian Chemical Society;2023-06-03