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2007•Journal of Instrumental AnalysisRequires access

Determination of Trace Arsenic in Wood and Wooden Products by Intermittent-flow-Hydride Generation-Atomic Fluorescence Spectrometry with L-Cysteine as a Pre-reducer

Maosheng Zhong

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Abstract

A method for the determination of trace arsenic in wood and wooden products by intermittent-flow-hydride generation-atomic fluorescence spectrometry with L-cysteine as a pre-reducer was developed.The optimal instrument conditions were established.The influence factors such as the acidity of sample solution and carrier liquid,the concentration of NaBH4 and L-cysteine,the flow rate of carrier and the interference of coexiting element had been investigated.The method is convenient and rapid.Under optimum conditions,the detection limit of arsenic was 0.15 μg·L-1,the recovery range was 95%-102% with relative standard deviation of 5.1%.

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A method for the determination of trace arsenic in wood and wooden products by intermittent-flow-hydride generation-atomic fluorescence spectrometry with L-cysteine as a pre-reducer was developed.The optimal instrument conditions were established.The influence factors such as the acidity of sample solution and carrier liquid,the concentration of NaBH4 and L-cysteine,the flow rate of carrier and the interference of coexiting element had been investigated.The method is convenient and rapid.Under optimum conditions,the detection limit of arsenic was 0.15 μg·L-1,the recovery range was 95%-102% with relative standard deviation of 5.1%.

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Available abstract

A method for the determination of trace arsenic in wood and wooden products by intermittent-flow-hydride generation-atomic fluorescence spectrometry with L-cysteine as a pre-reducer was developed.The optimal instrument conditions were established.The influence factors such as the acidity of sample solution and carrier liquid,the concentration of NaBH4 and L-cysteine,the flow rate of carrier and the interference of coexiting element had been investigated.The method is convenient and rapid.Under optimum conditions,the detection limit of arsenic was 0.15 μg·L-1,the recovery range was 95%-102% with relative standard deviation of 5.1%.

Key concepts: Chemistry, Hydride, Arsenic, Reducer, Detection limit, Relative standard deviation, Trace Amounts, Fluorescence spectrometry

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Determination of Trace Arsenic in Wood and Wooden Products by Intermittent-flow-Hydride Generation-Atomic Fluorescence Spectrometry with L-Cysteine as a Pre-reducer — Research Paper | ScholarLens