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Mensuration of trace As in coal by flow injection-hydride generation-atomic absorption spectrometry

PI Zhong-yuan

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Abstract

The method of mensurating trace As in coal by flow injection-hydride generation-atomic absorption spectrometry (FI-HG-AAS) was studied.The optimal conditions for hydride generation were investigated.The interference of the coexisting elements were prevented due to mensuration in coal.The method was applied to mensurate As in national standard reference materials.The results were in good agreement with the certified values.The detection limit was 0.14 ng/mL and the recovery of method was founded to be 94%～105% while the relative standard deviation(RSD) was 2.75%～7.45%(n=10).

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What this paper is about

The method of mensurating trace As in coal by flow injection-hydride generation-atomic absorption spectrometry (FI-HG-AAS) was studied.The optimal conditions for hydride generation were investigated.The interference of the coexisting elements were prevented due to mensuration in coal.The method was applied to mensurate As in national standard reference materials.The results were in good agreement with the certified values.The detection limit was 0.14 ng/mL and the recovery of method was founded to be 94%～105% while the relative standard deviation(RSD) was 2.75%～7.45%(n=10).

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Available abstract

The method of mensurating trace As in coal by flow injection-hydride generation-atomic absorption spectrometry (FI-HG-AAS) was studied.The optimal conditions for hydride generation were investigated.The interference of the coexisting elements were prevented due to mensuration in coal.The method was applied to mensurate As in national standard reference materials.The results were in good agreement with the certified values.The detection limit was 0.14 ng/mL and the recovery of method was founded to be 94%～105% while the relative standard deviation(RSD) was 2.75%～7.45%(n=10).

Key concepts: Hydride, Detection limit, Atomic absorption spectroscopy, Relative standard deviation, Chemistry, Certified reference materials, Analytical Chemistry (journal), Coal

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