Determination of mercury by atomic absorption spectrometry using a platinum-lined graphite furnace for in situ preconcentration
作者： Douglas C. Baxter , Wolfgang Frech
DOI: 10.1016/S0003-2670(00)84605-X
关键词: Analytical chemistry 、 Argon 、 Graphite furnace atomic absorption 、 Graphite 、 Tin 、 Mercury vapour turbine 、 Chemistry 、 Atomic absorption spectroscopy 、 Detection limit 、 Mercury (element)
摘要: Abstract Mercury in water samples was reduced by tin(II) chloride and the generated vapour swept a flow of argon through platinum-lined graphite tube to permit situ preconcentration. Subsequent atomization mercury then carried out under essentially gas-stop conditions maximize sensitivy. The system optimized with respect gas time generation/deposition using response surface methodology. Synthetic sea-water were analysed test applicability method. For 50-ml sample volumes, detection limits below 2 ng 1−1 could be obtained, based on twice standard deviation blank. most favourable aspect procedure is its simplicity, since generator can easily constructed connected commonly available furnace atomic absorption spectrometers.
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