Pharmaceutisch Weekblad

, Volume 5, Issue 4, pp 184–185 | Cite as

Some comments on extraction analysis of cations complexed with a crown ether

  • I. M. Kolthoff
Short Communications


A brief review is given on the use of crown ethers in solubilizing salts of alkali and alkaline earth ions in organic polar or apolar solvents. Use of crown ethers can also be made in testinge.g. lithium salts for potassium by extraction as LKpicrate, L being 18-crown-6.


Public Health Ether Potassium Internal Medicine Lithium 
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Copyright information

© Royal Dutch Association for Advancement of Pharmacy 1983

Authors and Affiliations

  • I. M. Kolthoff
    • 1
  1. 1.Department of ChemistryUniversity of MinnesotaMinneapolisUSA

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