The Preparation of a Decylidene Bis(4′-benzo-15-crown-5) Ether Membrane Rubidium(I) Electrode

✍ Scribed by Yang Yunhui; Bi Yunmei; Liu Mei; Fu Jin; Xi Zhiwen

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 53 KB
• Volume: 55
• Category: Article
• ISSN: 0026-265X
• DOI: 10.1006/mchj.1996.1308

✦ Synopsis

A rubidium-selective electrode has been developed by coating a graphite rod with a PVC membrane containing decylidene bis(4-benzo-15-crown-5) ether, which is used as a neutral carrier. This electrode exhibited a near Nernstian response to rubidium in the range 1.0 1 10 01 to 5.0 1 10 05 mol/liter with a slope of 52 mV/pC. The detection limit was 2.0 1 10 05 mol/ liter. This decylidene bis(4-benzo-15-crown-5) ether is a new compound prepared by Sichuan University and has never been used to prepare a rubidium electrode. ᭧ 1997 Academic Press FIG. 1. Schematic drawing of the biscrown ether.