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  • Title: Direct determination of manganese in vitamin-mineral tablets using solid sampling electrothermal atomic absorption spectrometry.
    Author: Coşkun N, Akman S.
    Journal: Talanta; 2004 Oct 08; 64(2):496-500. PubMed ID: 18969631.
    Abstract:
    Manganese in vitamin-minerals tablets was determined by solid sampling electrothermal atomic absorption spectrometry (SS-ETAAS) using three different calibration methods, namely calibration against aqueous standards, standard addition with aqueous standards on solid samples and calibration against solid certified standards. Samples were only finely ground and introduced directly into the furnace by means of solid autosampler system without any dissolving process. Effects of different calibration techniques, temperatures and heating rates of atomization and pyrolysis steps on the accuracy and precision of the analyte elements were investigated. After optimization of the experimental parameters, there is good agreement (at 95% confidence level) between the results obtained by solid sampling and those obtained by acid digestion of samples.
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