A surface plasmon resonance gas sensor in a 'compact disc' format

Authors
Challener, WA Ollmann, RR Kam, KK
Citation
Wa. Challener et al., A surface plasmon resonance gas sensor in a 'compact disc' format, SENS ACTU-B, 56(3), 1999, pp. 254-258
Citations number
20
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
56
Issue
3
Year of publication
1999
Pages
254 - 258
Database
ISI
SICI code
0925-4005(19990622)56:3<254:ASPRGS>2.0.ZU;2-D
Abstract
A surface plasmon resonance sensor has been designed using a rotating optic al disk coated with a silver film and a transparent dielectric film with a thickness gradient. A pH indicator, bromocresol purple, was used as a recep tor on the surface to demonstrate the technique by detecting ammonia, Ammon ia concentrations in the few ppb range could be detected with relatively si mple and inexpensive electronics. (C) 1999 Elsevier Science S.A. All rights reserved.