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2010•Unpublished venueRequires access

The Simultaneous Determination of Arsenic and Mercury in Surface Water by HGAFS

Wang Ludan

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Abstract

We establish a method of the simultaneous determination of Arsenic and Mercury in surface water by hydride generation atomic fluorescence spectrometry(HGAFS).The influential factors including working conditions,the concentration of HCl,the amount of potassium borohydrid,sample pretreatment and the interferences of coexisting ions are studied and optimized.The detection limit(3s/b) of Arsenic and Mercury is 0.5 μg/L and 0.01 μg/L,respectively.The RSD(relative standard deviation) of this method is less than 6%.The recovery rate of Arsenic is range from 95% to 102% and Mercury is from 90% to 98%.The detecting results of standard materials is very close to the reference values.

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What this paper is about

We establish a method of the simultaneous determination of Arsenic and Mercury in surface water by hydride generation atomic fluorescence spectrometry(HGAFS).The influential factors including working conditions,the concentration of HCl,the amount of potassium borohydrid,sample pretreatment and the interferences of coexisting ions are studied and optimized.The detection limit(3s/b) of Arsenic and Mercury is 0.5 μg/L and 0.01 μg/L,respectively.The RSD(relative standard deviation) of this method is less than 6%.The recovery rate of Arsenic is range from 95% to 102% and Mercury is from 90% to 98%.The detecting results of standard materials is very close to the reference values.

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Available abstract

We establish a method of the simultaneous determination of Arsenic and Mercury in surface water by hydride generation atomic fluorescence spectrometry(HGAFS).The influential factors including working conditions,the concentration of HCl,the amount of potassium borohydrid,sample pretreatment and the interferences of coexisting ions are studied and optimized.The detection limit(3s/b) of Arsenic and Mercury is 0.5 μg/L and 0.01 μg/L,respectively.The RSD(relative standard deviation) of this method is less than 6%.The recovery rate of Arsenic is range from 95% to 102% and Mercury is from 90% to 98%.The detecting results of standard materials is very close to the reference values.

Key concepts: Mercury (programming language), Arsenic, Detection limit, Hydride, Chemistry, Relative standard deviation, Environmental chemistry, Surface water

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