Microchimica Acta

, Volume 111, Issue 1–3, pp 93–101 | Cite as

Liquid-liquid extraction of copper(II) with cryptand 222 with erythrosine B as the counter-ion

  • Mayuri N. Gandhi
  • Shripad M. Khopkar
Original Papers
Received:
Revised:

Abstract

Copper is extracted at pH 5.5 with 3 × 10−4M cryptand 222 in dichloromethane with 3 × 10−4M erythrosine B as the counter-ion. It can be stripped with 0.5M perchloric acid and determined by atomic absorption spectrometry at 324.7 nm. Copper has been separated from multicomponent mixtures containing zinc, mercury, iron, cobalt, nickel and manganese, which are generally encountered in environmental samples.

Key words

solvent extraction cryptand 222 copper(II) erythrosine B environmental samples separation 
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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Mayuri N. Gandhi
    • 1
  • Shripad M. Khopkar
    • 1
  1. 1.Centre for Environmental Science and EngineeringIndian Institute of TechnologyPowai, BombayIndia

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