Bronson R Todd, Michaelis David J, Lamb Randy D, Husseini Ghaleb A, Farnsworth Paul B, Linford Matthew R, Izatt Reed M, Bradshaw Jerald S, Savage Paul B
Physical Science Department, College of Southern Idaho, Twin Falls, Idaho 83301, USA.
Org Lett. 2005 Mar 17;7(6):1105-8. doi: 10.1021/ol050027t.
[reaction: see text] The development of an ion-selective chemosensor for Cd(2+) allows generation of a "real-time" sensor. Immobilization of the chemosensor on quartz was achieved in a simple monolayer and in a thin film using a polymer intermediary. As intended, the thin film contains much more chemosensor than the monolayer and provides measurable responses to aqueous Cd(2+) concentrations below 1 microM. Alkali and alkaline earth ions do not interfere with Cd(2+) sensing; Zn(2+) and Cu(2+) are potential interferents.
[反应：见正文] 用于镉离子（Cd(2+)）的离子选择性化学传感器的开发能够产生一种“实时”传感器。通过使用聚合物中间体，可将化学传感器以简单的单分子层形式和薄膜形式固定在石英上。正如预期的那样，薄膜所含的化学传感器比单分子层多得多，并且对低于1微摩尔的水溶液中镉离子（Cd(2+)）浓度能给出可测量的响应。碱金属离子和碱土金属离子不会干扰镉离子（Cd(2+)）的传感；锌离子（Zn(2+)）和铜离子（Cu(2+)）是潜在的干扰物。
