Solid Phase Spectrophotometric Microdetermination of Manganese
- 1 December 1991
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 45 (4) , 219-228
- https://doi.org/10.1080/03067319108027387
Abstract
A method for the determination of microgram per litre level of manganese has been developed, based on Solid-Phase Spectrophotometry (SPS). Manganese reacts with 3-bromobenzohydroxamic acid to form a 1:3 anionic brown-reddish complex of Mn(III), which is fixed on a dextran-type anion-exchange resin. Resin phase absorbance is measured directly and allows the determination of manganese in the range 5–100 μg 1−1, with a RSD of 4%. The method has been applied to the determination of manganese in different samples, namely plant tissue extracts, active charcoals and waters.Keywords
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