Summary
Manganese(VII) (0–100 μg) can be determined spectrophotometrically at 548 nm after its extraction as triphenylsulphonium permanganate into chloroform. The effects of pH, reagent conditions and diverse ions are reported. The system has been applied to the determination of manganese in a range of steels. For the determination of 60 μg of manganese the relative standard deviation was 0.5% (n=7).
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Burns, D.T., Harriott, M. & Barakat, S.A. Spectrophotometric determination of manganese in low-alloy steels after its extraction as triphenylsulphonium permanganate. Fresenius J Anal Chem 343, 488–490 (1992). https://doi.org/10.1007/BF00322155
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DOI: https://doi.org/10.1007/BF00322155