Issue 7, 1995

Design and characterization of sodium-selective optode membranes based on the lipophilic tetraester of calix[4]arene

Abstract

Four types of lipophilic calixarene ionophores have been used in the design of sodium-selective optode membranes. Plasticized poly(vinyl chloride)(PVC) membranes incorporating the tetraester of calix[4]arene and a neutral H+-selective chromo-ionophore (ETH 5294) have proved to be excellent reversible sensing devices for the optical determination of the sodium cation in pH-buffered solutions. At pH 9.0, the absorbance response of the optode shows a good correlation with the theoretically derived formula in the range from 1 × 10–6 to 10–2 mol l–1 sodium ion. Dynamic range, reproducibility, response time and the selectivity of the new optode membranes are discussed.

Article information

Article type
Paper

Analyst, 1995,120, 1963-1967

Design and characterization of sodium-selective optode membranes based on the lipophilic tetraester of calix[4]arene

W. H. Chan, A. W. M. Lee, C. M. Lee, K. W. Yau and K. Wang, Analyst, 1995, 120, 1963 DOI: 10.1039/AN9952001963

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements