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A Green Preconcentration Method for Determination of Cobalt and Lead in Fresh Surface and Waste Water Samples Prior to Flame Atomic Absorption Spectrometry
Joint Authors
Khan, Sumaira
Naeemullah,
Afridi, Hassan Imran
Brahman, Kapil Dev
Arian, Sadaf Sadia
Kazi, Tasneem Gul
Shah, Faheem
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Cloud point extraction (CPE) has been used for the preconcentration and simultaneous determination of cobalt (Co) and lead (Pb) in fresh and wastewater samples.
The extraction of analytes from aqueous samples was performed in the presence of 8-hydroxyquinoline (oxine) as a chelating agent and Triton X-114 as a nonionic surfactant.
Experiments were conducted to assess the effect of different chemical variables such as pH, amounts of reagents (oxine and Triton X-114), temperature, incubation time, and sample volume.
After phase separation, based on the cloud point, the surfactant-rich phase was diluted with acidic ethanol prior to its analysis by the flame atomic absorption spectrometry (FAAS).
The enhancement factors 70 and 50 with detection limits of 0.26 μg L−1 and 0.44 μg L−1 were obtained for Co and Pb, respectively.
In order to validate the developed method, a certified reference material (SRM 1643e) was analyzed and the determined values obtained were in a good agreement with the certified values.
The proposed method was applied successfully to the determination of Co and Pb in a fresh surface and waste water sample.
American Psychological Association (APA)
Naeemullah, & Kazi, Tasneem Gul& Shah, Faheem& Afridi, Hassan Imran& Khan, Sumaira& Arian, Sadaf Sadia…[et al.]. 2012. A Green Preconcentration Method for Determination of Cobalt and Lead in Fresh Surface and Waste Water Samples Prior to Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-492668
Modern Language Association (MLA)
Naeemullah,…[et al.]. A Green Preconcentration Method for Determination of Cobalt and Lead in Fresh Surface and Waste Water Samples Prior to Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-492668
American Medical Association (AMA)
Naeemullah, & Kazi, Tasneem Gul& Shah, Faheem& Afridi, Hassan Imran& Khan, Sumaira& Arian, Sadaf Sadia…[et al.]. A Green Preconcentration Method for Determination of Cobalt and Lead in Fresh Surface and Waste Water Samples Prior to Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-492668
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-492668