Atomization of tin in saline water media in graphite furnace atomic absorption spectrometry with a tungsten-coated tube using palladium as a chemical modifier
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説明
Abstract The direct atomization of tin in saline water media in graphite furnace atomic absorption spectrometry with a tungsten-coated tube was investigated. The combined use of a tungsten-coated non-pyrolytic graphite tube and palladium as a chemical modifier eliminated salinity in doubly diluted sea water without a serious loss of tin at an ashing temperature of 1700°C. Sulphate interference was also suppressed. When using an injection volume of 20 μl the sensitivity was 0.0566 ± 0.0043 peak-area absorbance ng −1 , and 0.0805 ± 0.0078 without sodium chloride and sulphate. The 3σ detection limit was 0.08 ng.
収録刊行物
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- Analytica Chimica Acta
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Analytica Chimica Acta 274 231-235, 1993-03-01
Elsevier BV