Dedicated to Professor Hans-Jürgen Bestmann on the occasion of his 65th birthday
Article first published online: 15 SEP 2004
Copyright © 1990 Verlag GmbH & Co. KGaA, Weinheim
Volume 2, Issue 9, pages 420–422, September 1990
How to Cite
Dickert, F. L., Bertlein, G., Mages, G. and Bulst, W.-E. (1990), Triphenyl methane dyes as sensor materials for solvent detection with surface-acoustic-wave devices. Adv. Mater., 2: 420–422. doi: 10.1002/adma.19900020907
Financial Support by "Fonds der Chemischen Industrie" is gratefully acknowledged.
- Issue published online: 15 SEP 2004
- Article first published online: 15 SEP 2004
- Manuscript Received: 17 APR 1990
Highly-colored phthalide carbenium ions (see figure) embedded in a matrix of phenols can form the basis of solventsensing devices able to detect a variety of solvents in concentrations down to a few ppm. Solvent absorption disturbs hydrogen bonding producing a less favorable environment for the cations, the changing concentration of which can be monitored using optical absorption, or SAW-devices.