Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10410419 | Sensors and Actuators B: Chemical | 2005 | 5 Pages |
Abstract
A new PVC membrane electrode for CO32â anion based on urea-functionalized calix[4]arenes (I-IV) as neutral ionophores is prepared. Of the various membranes prepared, the membrane based on bis-urea calix[4]arene I exhibits a linear stable response over a concentration range (5.0 Ã 10â4 to 1.0 Ã 10â1) with a slope of â29.2Â mV per decade and a detection limit of 1.2 Ã 10â4Â M, and the best selectivity for CO32â anion [KTCO2Jpot=1.9Ã10â2(salâ)and2.1Ã10â2(Iâ)] over salicylate and iodide.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Hyo Kyoung Lee, Hyejin Oh, Kye Chun Nam, Seungwon Jeon,