Speciation Analysis of Inorganic Arsenic in Coal Samples


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A new method was developed for the speciation of inorganic arsenic in coal samples by liquid chromatography coupled to hydride generation atomic fluorescence spectrometry after microwave-assisted extraction. Effective extract of As(III), As(V) in coal sample was achieved by 1.0molL-1 H3PO4 and 0.1 molL-1ascorbic acid. Under the optimized conditions, the limits of detection were 0.01 ugL-1and 0.02 ugL-1for As(III), As(V). The relative standard deviation were 2.4 %, 3.3 % (c= 20.0 gL-1, n=7). The proposed method was successfully applied for the determination of speciation of inorganic arsenic in coal samples and GBW11117.



Advanced Materials Research (Volumes 610-613)

Edited by:

Qunjie Xu, Yanzhong Ju and Honghua Ge




M. Sun et al., "Speciation Analysis of Inorganic Arsenic in Coal Samples", Advanced Materials Research, Vols. 610-613, pp. 1991-1995, 2013

Online since:

December 2012




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