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Home / Spectroscopy and Spectral Analysis, Volume 33, Number 3

Determinatoin of Trace Mercury in Sludge Samples by Hydride Generation-Atomic Fluorescence Spectrometry

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Due to the complex matrix characteristic of sludge samples, the research on three wet digestion systems and the conditions of reducing agent, and carrier flow was carried. The experiment conditions of HNO3-HClO4 wet systems, namely 5% HNO3 carrier flow, 0.1% NaBH4 reducing agent, and acidity medium of 5% HNO3+0.05% K2Cr2O7 mixed solution, etc. were finally determined to measure the trace mercury in sludge samples. This recommended method has many advantages, such as accurate and quick detection and simple operation. The determination limit is 0.06 μg·L-1, and the relative standard deviation for 11-time determination of the solution containing 4.0 μg·L-1 Hg is 2.0%. This method for trace mercury in sludge samples by hydride generation-fluorescence (HG-AFS) can be widely used.

Keywords: Complex matrix; Hydride generation atomic fluorescence spectrometry; Mercury; Sludge

Document Type: Research Article

Publication date: 15 March 2013

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  • Spectroscopy and Spectral Analysis, founded in 1981, is sponsored by the Chinese Central Iron & Steel Research Institute. "Spectroscopy and Spectral Analysis" has been indexed in SCI(1999), Ei(1992), MEDLINE(1999), and AJ (1999). "Spectroscopy and Spectral Analysis" publishes original contributions on various fields in Spectroscopy, including research results on laser spectroscopy, IR, Ramn, UV/Vis, Optical Emission, Absorption and Fluorescence spectroscopy, X-ray Fluorescence, and Spectrochemical Analysis, as well as Reseach paper, Research notes, Experimental Technique and Instrument, Review and Progress on the latest development of spectroscopy and spectrochemical anlysis, etc. "Spectroscopy and Spectral Analysis" is published monthly by Peking University Press with book sizes of large 16-mo format , and 292 pages per issue.
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