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 language | English |
---|---|
Pages (from-to) | 161-166 |
Number of pages | 6 |
Journal | analytical sciences |
Volume | 13 |
Issue number | SUPPL. |
DOIs | |
Publication status | Published - Jan 1 1997 |
All Science Journal Classification (ASJC) codes
- Analytical Chemistry