Fresenius' Zeitschrift für analytische Chemie

, Volume 332, Issue 5, pp 453–455 | Cite as

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

  • D. Thorburn Burns
  • D. Chimpalee
  • N. Chimpalee
Original Papers Heavy Metals


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%.


Manganese Permanganate Triphenylphosphonium Potassium Periodate Apparent Molar Absorptivity 
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Spektralphotometrische Bestimmung von Mangan(VII) nach Extraktion mit dem Trimethylen-bis(triphenylphosphonium)- Kation mit Hilfe von mikrokristallinem Naphthalin


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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • D. Thorburn Burns
    • 1
  • D. Chimpalee
    • 1
  • N. Chimpalee
    • 1
  1. 1.Department of Analytical ChemistryThe Queen's University of BelfastBelfast

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