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2005•Journal of Instrumental AnalysisRequires access

Determination of Mercury in Hair by Atomic Absorption Spectrometry with Pyrolysis

Ru‐Jin Huang

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Abstract

A rapid and simple method for the determination of total mercury in hair by using atomic absorpˉtion spectrometry with pyrolysis is developed.No sample digestion was needed.Under optimum conditions,the reproducibilities of the method were3.9%for peak area and7.2%for peak height,respectively.The detection limit was26ng/g(3σ)and the recovery was within the range of94%～103%.Several Standard Reference Materials were analyzed and the results obtained agreed well with the certified values.The perforˉmances of the method were compared with those of the inductively coupled plasma-mass spectrometry(ICP-MS)and excellent agreements were observed.

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What this paper is about

A rapid and simple method for the determination of total mercury in hair by using atomic absorpˉtion spectrometry with pyrolysis is developed.No sample digestion was needed.Under optimum conditions,the reproducibilities of the method were3.9%for peak area and7.2%for peak height,respectively.The detection limit was26ng/g(3σ)and the recovery was within the range of94%～103%.Several Standard Reference Materials were analyzed and the results obtained agreed well with the certified values.The perforˉmances of the method were compared with those of the inductively coupled plasma-mass spectrometry(ICP-MS)and excellent agreements were observed.

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Available abstract

A rapid and simple method for the determination of total mercury in hair by using atomic absorpˉtion spectrometry with pyrolysis is developed.No sample digestion was needed.Under optimum conditions,the reproducibilities of the method were3.9%for peak area and7.2%for peak height,respectively.The detection limit was26ng/g(3σ)and the recovery was within the range of94%～103%.Several Standard Reference Materials were analyzed and the results obtained agreed well with the certified values.The perforˉmances of the method were compared with those of the inductively coupled plasma-mass spectrometry(ICP-MS)and excellent agreements were observed.

Key concepts: Chemistry, Inductively coupled plasma mass spectrometry, Mercury (programming language), Detection limit, Certified reference materials, Atomic absorption spectroscopy, Analytical Chemistry (journal), Mass spectrometry

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