Cloud point extraction-flame atomic absorption spectrometry for pre-concentration and determination of trace amounts of silver ions in water samples
Joint Authors
Yang, Xiupei
Jia, Zhihui
Yang, Xiaocui
Li, Gu
Liao, Xiangjun
Source
Saudi Journal of Biological Sciences
Issue
Vol. 24, Issue 3 (31 Mar. 2017), pp.589-594, 6 p.
Publisher
Publication Date
2017-03-31
Country of Publication
Saudi Arabia
No. of Pages
6
Main Subjects
Topics
Abstract EN
A cloud point extraction (CPE) method was used as a pre-concentration strategy prior to the determination of trace levels of silver in water by flame atomic absorption spectrometry (FAAS) The pre-concentration is based on the clouding phenomena of non-ionic surfactant, triton X-114, with Ag (I)/diethyldithiocarbamate (DDTC) complexes in which the latter is soluble in a micellar phase composed by the former.
When the temperature increases above its cloud point, the Ag (I)/DDTC complexes are extracted into the surfactant-rich phase.
The factors affecting the extraction efficiency including pH of the aqueous solution, concentration of the DDTC, amount of the surfactant, incubation temperature and time were investigated and optimized.
Under the optimal experimental conditions, no interference was observed for the determination of 100 ngmL 1 Ag+ in the presence of various cations below their maximum concentrations allowed in this method, for instance, 50 lgmL 1 for both Zn2+ and Cu2+, 80lgmL 1 for Pb2+, 1000 lgmL 1 for Mn2+, and 100 lgmL 1 for both Cd2+ and Ni2+.
The calibration curve was linear in the range of 1–500 ngmL 1 with a limit of detection (LOD) at 0.3 ngmL 1.
The developed method was successfully applied for the determination of trace levels of silver in water samples such as river water and tap water
American Psychological Association (APA)
Yang, Xiupei& Jia, Zhihui& Yang, Xiaocui& Li, Gu& Liao, Xiangjun. 2017. Cloud point extraction-flame atomic absorption spectrometry for pre-concentration and determination of trace amounts of silver ions in water samples. Saudi Journal of Biological Sciences،Vol. 24, no. 3, pp.589-594.
https://search.emarefa.net/detail/BIM-761770
Modern Language Association (MLA)
Yang, Xiupei…[et al.]. Cloud point extraction-flame atomic absorption spectrometry for pre-concentration and determination of trace amounts of silver ions in water samples. Saudi Journal of Biological Sciences Vol. 24, no. 3 (Mar. 2017), pp.589-594.
https://search.emarefa.net/detail/BIM-761770
American Medical Association (AMA)
Yang, Xiupei& Jia, Zhihui& Yang, Xiaocui& Li, Gu& Liao, Xiangjun. Cloud point extraction-flame atomic absorption spectrometry for pre-concentration and determination of trace amounts of silver ions in water samples. Saudi Journal of Biological Sciences. 2017. Vol. 24, no. 3, pp.589-594.
https://search.emarefa.net/detail/BIM-761770
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 593-594
Record ID
BIM-761770