IMPEDANCE ANALYSIS OF THE QUARTZ MICRO-BALANCE SIGNAL

Authors
FRUBOSE C DOBLHOFER K SOARES DM
Citation
C. Frubose et al., IMPEDANCE ANALYSIS OF THE QUARTZ MICRO-BALANCE SIGNAL, Berichte der Bunsengesellschaft fur Physikalische Chemie, 97(3), 1993, pp. 475-478
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
97
Issue
3
Year of publication
1993
Pages
475 - 478
Database
ISI
SICI code
0005-9021(1993)97:3<475:IAOTQM>2.0.ZU;2-M
Abstract
During measurements of mass-changes with the electrochemical quartz-mi crobalance (E-QMB) changes of the visco-elastic properties of the cont acting medium (liquids and/or films) can occur. If such changes are no t taken into account in the evaluation of the observed frequency-chang es, erroneous results will normally be obtained. The problem is analyz ed on the basis of the system's impedance. Methods for correcting resu lts obtained with impedance-analyzers and with feedback-driver circuit s are presented.