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The spectrophotometric determination of manganese(VII) after extraction with the trimethylene-bis(triphenylphosphonium) cation with microcrystalline naphthalene

Spektralphotometrische Bestimmung von Mangan(VII) nach Extraktion mit dem Trimethylen-bis(triphenylphosphonium)- Kation mit Hilfe von mikrokristallinem Naphthalin

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Summary

Manganese(VII) (0–120 μg) can be determined spectrophotometrically at 548 nm after its adsorptive extraction at pH 6 as its trimethylene-bis(triphenylphosphonium) ion pair with microcrystalline naphthalene after dissolution of the solid phase in 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 0.61%.

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Authors and Affiliations

  1. Department of Analytical Chemistry, The Queen's University of Belfast, BT9 5AG, Belfast, Northern Ireland

    D. Thorburn Burns, D. Chimpalee & N. Chimpalee

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  1. D. Thorburn Burns
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  2. D. Chimpalee
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  3. N. Chimpalee
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Thorburn Burns, D., Chimpalee, D. & Chimpalee, N. The spectrophotometric determination of manganese(VII) after extraction with the trimethylene-bis(triphenylphosphonium) cation with microcrystalline naphthalene. Z. Anal. Chem. 332, 453–455 (1988). https://doi.org/10.1007/BF00499267

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  • DOI: https://doi.org/10.1007/BF00499267

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