Selective colorimetry of sodium ion in acidic aqueous media by calix[4]crown chromoionophore

Takashi Hayashita, Kenji Kunogi, Hiromasa Yamamoto, Seiji Shinkai

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Selective colorimetry of alkali metal ions in aqueous dioxane solution by calix[4]crown chromoionophore possessing three dimensionally designed ion recognition site has been examined. Based upon a tautomerism from phenylazophenol to quinone hydrazone structure by forming MHL complex, chromoionophore was found to show a selective color change for Na+ in acidic aqueous media. In the same condition, no response was observed for Li+, K+, and TMA+.

Original languageEnglish
Pages (from-to)161-166
Number of pages6
Journalanalytical sciences
Volume13
Issue numberSUPPL.
DOIs
Publication statusPublished - Jan 1 1997

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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