Title : ( preconcentration of mercury in water samples by cloud point extraction and its determination by electrothermal atomic absorption spectrometry )
Authors: malihe dehghani , Mahmod CHamsaz , Mohammad Hossein Arbab Zavar , S. A. Taheri ,
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Abstract
A pre-concentration and determination methodology for mercury at trace levels in water samples was developed. Cloud point extraction was successfully employed for pre-concentration of mercury prior to electrothermal atomic absorption spectrometry (ETAAS) using Triton-X-100 as surfactant. In this study the effect of different modifiers on mercury determination were also investigated. Under the optimum conditions, the limit of detection (LOD) was 1.2 µg L-1. RSD for 10 replicate determinations of 10 µg L-1 Hg was 4.7 %. The calibration graph was linear in the range of 10-100 µg L-1 with a correlation coefficient of 0.997. The method was successfully applied to determine mercury in sea water samples.
Keywords
MERCURY; EXTRACTION (Chemistry); FURNACE atomic absorption spectroscopy; TRACE elements; SURFACE active agents
@article{paperid:1040636,
author = {Dehghani, Malihe and CHamsaz, Mahmod and Arbab Zavar, Mohammad Hossein and S. A. Taheri},
title = {preconcentration of mercury in water samples by cloud point extraction and its determination by electrothermal atomic absorption spectrometry},
journal = {Asian Journal of Chemistry},
year = {2012},
volume = {24},
number = {10},
month = {June},
issn = {0970-7077},
pages = {4277--4280},
numpages = {3},
keywords = {MERCURY; EXTRACTION (Chemistry); FURNACE atomic absorption spectroscopy; TRACE elements; SURFACE active agents},
}
%0 Journal Article
%T preconcentration of mercury in water samples by cloud point extraction and its determination by electrothermal atomic absorption spectrometry
%A Dehghani, Malihe
%A CHamsaz, Mahmod
%A Arbab Zavar, Mohammad Hossein
%A S. A. Taheri
%J Asian Journal of Chemistry
%@ 0970-7077
%D 2012
