Studies of aluminum (III) ion-selective optical sensor based on a chromogenic calix[4]arene derivative

- We report optical sensing studies of chromogenic calixarene derivatives.
- We examine the complexation behavior of azo-calix[4]arene for metal ions.
- We investigate the response mechanism between azo-calix[4]arene and Al3+.
- We study characteristics of optode films for determination of aluminum traces.