Maity, S and Chakravarty, S and Thakur, P and Gupta, K K and Bhattacharjee, S and Roy, B C (2004) Evaluation and standardisation of a simple HG-AAS method for rapid speciation of As(III) and As(V) in some contaminated groundwater samples of West Bengal, India. Chemosphere - Global Change Science, 54 (8). pp. 1199-1206.
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A simple HG-AAS technique has been evaluated and standardised for rapid speciation of As(III) and As(V) in a number of contaminated groundwater samples of West Bengal, India. Citric acid has been used for selective hydride formation of As(III). The sensitivity of the evaluated HG-AAS method is 7.91 mg−1 l, standard deviation, 0.001 and detection limit, 0.4 μg l−1. As(III) sensitivity remains constant in the sample pH range of 2.3–10.6. Concomitant mineral matrix of the water samples did not interfere with arsenic determination. Eight out of ten groundwater samples analysed for As(IlI)and As(V) contain more As(III), which lies in the range of 54–350 ppb. As(III) estimation in drinking water along with total arsenic should be invoked as a policy for a realistic risk assessment of the contaminated water.
|Uncontrolled Keywords:||Arsenic speciation; HG-AAS; Groundwater; West Bengal; India|
|Deposited By:||Sahu A K|
|Deposited On:||18 May 2010 12:07|
|Last Modified:||04 Aug 2011 12:06|
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