SeparationPreconcentration and Speciation Analysis of Trace Amounts of Arsenate and Arsenite in Water Samples Using Modified Magnetite Nanoparticles and Molybdenum Blue Method
Joint Authors
Mohammadi, S. Z.
Hatefi-Mehrjardi, Abdolhamid
Yarahmadi, Javad
Khayrkhah, Azadeh
Mohadesi, Alireza
Karimi, M. A.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A new, simple, and fast method for the separation/preconcentration and speciation analysis of arsenate and arsenite ions using cetyltrimethyl ammonium bromide immobilized on alumina-coated magnetite nanoparticles (CTAB@ACMNPs) followed by molybdenum blue method is proposed.
The method is based on the adsorption of arsenate on CTAB@ACMNPs.
Total arsenic in different samples was determined as As(V) after oxidation of As(III) to As(V) using potassium permanganate.
The arsenic concentration has been determined by UV-Visible spectrometric technique based on molybdenum blue method and amount of As(III) was calculated by subtracting the concentration of As(V) from total arsenic concentration.
MNPs and ACMNPs were characterized by VSM, XRD, SEM, and FT-IR spectroscopy.
Under the optimal experimental conditions, the preconcentration factor, detection limit, linear range, and relative standard deviation (RSD) of arsenate were 175 (for 350 mL of sample solution), 0.028 μ g mL−1, 0.090–4.0 μ g mL−1, and 2.8% (for 2.0 μ g mL−1, n = 7 ), respectively.
This method avoided the time-consuming column-passing process of loading large volume samples in traditional SPE through the rapid isolation of CTAB@ACMNPs with an adscititious magnet.
The proposed method was successfully applied to the determination and speciation of arsenic in different water samples and suitable recoveries were obtained.
American Psychological Association (APA)
Karimi, M. A.& Mohadesi, Alireza& Hatefi-Mehrjardi, Abdolhamid& Mohammadi, S. Z.& Yarahmadi, Javad& Khayrkhah, Azadeh. 2013. SeparationPreconcentration and Speciation Analysis of Trace Amounts of Arsenate and Arsenite in Water Samples Using Modified Magnetite Nanoparticles and Molybdenum Blue Method. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1039924
Modern Language Association (MLA)
Karimi, M. A.…[et al.]. SeparationPreconcentration and Speciation Analysis of Trace Amounts of Arsenate and Arsenite in Water Samples Using Modified Magnetite Nanoparticles and Molybdenum Blue Method. Journal of Chemistry No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1039924
American Medical Association (AMA)
Karimi, M. A.& Mohadesi, Alireza& Hatefi-Mehrjardi, Abdolhamid& Mohammadi, S. Z.& Yarahmadi, Javad& Khayrkhah, Azadeh. SeparationPreconcentration and Speciation Analysis of Trace Amounts of Arsenate and Arsenite in Water Samples Using Modified Magnetite Nanoparticles and Molybdenum Blue Method. Journal of Chemistry. 2013. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1039924
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1039924