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A simple and reliable method for the selective extraction and determination of bismuth in water as well as alloy samples using octadecyl bonded silica cartridge modified with cyanex 301 and graphite furnace atomic absorption spectrometry is described. Extraction efficiency and influence of sample matrix, optimum amount of extraction ligand, type and least amount of proper eluent and flow rates were...
A simple method for rapid and selective extraction, preconcentration and determination of copper as it's neocuproine complex by using octadecylsilica membrane disks and spectrophotometry is presented. Extraction efficiency and the influence of flow rates of sample solution and eluent, pH, amount of neocuproine and hydroxylamine hydrochloride, type and least amount of eluent for elution of copper complex...
A simple method for rapid extraction and determination of ultra trace amounts of mercury(II) ions using octadecyl-bonded silica membrane disks modified with hexathia-18-crown-6-tetraone and cold vapour atomic absorption spectrometry (CVAAS) is presented. Extraction efficiency and the influence of flow rates, pH, and type and smallest amount of stripping acid were evaluated. Maximum capacity of the...
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