Abstract
A continuous precipitation flame atomization atomic absorption spectrometric method for the indirect determination of sulphate is proposed. By using a reversed flow-injection configuration for precipitation as barium sulphate, this anion was determined in the range 10–150 μg/ml, with a relative standard deviation of 2.6%. The sensitivity was increased by a factor of seven by using a nitrous oxide-acetylene flame to measure barium.
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Gallego, M., Valcárcel, M. Indirect automatic atomic absorption determination of sulphate based on its precipitation with barium. Mikrochim Acta 105, 163–168 (1991). https://doi.org/10.1007/BF01243543
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DOI: https://doi.org/10.1007/BF01243543