Volume 20, Number 6 (2-2017)                   hmj 2017, 20(6): 355-364 | Back to browse issues page




DOI: 10.18869/acadpub.hmj.20.6.383

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Khorasani R, Dindarloo Inaloo K, Heidari M, Behbahani M, Rahmanian O. Application of solvent-assisted dispersive solid phase extraction combined with flame atomic absorption spectroscopy for the determination of trace amounts of Cadmium. hmj. 2017; 20 (6) :355-364
URL: http://hmj.hums.ac.ir/article-1-1655-en.html

Hormozgan University of Medical Science, Bandar Abbas, Iran
Abstract:   (1063 Views)

Introduction: Cadmium is recognized worldwide as a toxic metal. In this study, Solvent-Assisted Dispersive Solid Phase Extraction (SA-DSPE) combined with Flame Atomic Absorption Spectrometry (FAAS), was used for determination of trace amounts of Cadmium (Cd-II)) in drinking water samples.

Correspondence:

Omid Rahmanian, PhD.

Department of Environmental Health, Hormozgan University of Medical Sciences.

Bandar Abbas, Iran

Tel:+98 9177925646

Email:

om.rahmanian@gmail.com

Methods: In this approach, the dispersion of the sorbent was achieved by injecting a mixture of solution of the sorbent and dispersive solvent into the aqueous sample. Thereby, a cloudy solution formed. The cloudy solution was centrifuged and the enriched Cd (II) in the sediment phase dissolved in ethanol and determined by FAAS. Some effective parameters for SA-DSPE, such as: pH, concentration of chelating agent, type and amount of sorbent, type and volume of dispersive solvent and salt effect were investigated and optimized.

Results: Under the optimized conditions, the detection limit for Cd (II) ions was 0.6 ng mL-1. Calibration curve was made in the range of 1-300 ng mL-1, obtaining good linearity (R2=0.9930). Finally, SA-DSPE was successfully applied for trace determination of Cd (II) in drinking water samples.

Conclusion: SA-DSPE is environment friendly and strongly against high contents of salt. The other benefits of the method are its simplicity, ease of operation, good precision, short extraction time, low cost, and a good enrichment factor.

Keywords: Cadmium, Atomic Absorption Spectrometry, Drinking Water
Citation: Khorasani R, Dindarloo Inaloo K, Heidari M, Behbahani M, Rahmanian O. Application of solvent-assisted dispersive solid phase extraction combined with flame atomic absorption spectroscopy for the determination of trace amounts of Cadmium. Hormozgan Medical Journal 2017;20(6):355-364.
Full-Text [PDF 489 kb]   (388 Downloads)    
Type of Study: Research | Subject: medical
Received: 2017/03/14 | Accepted: 2017/03/14 | Published: 2017/03/14

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