Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10528756 | Analytica Chimica Acta | 2005 | 5 Pages |
Abstract
The present work reports the new effects of the immersion-angle dependence of the resonant-frequency shift (ÎF) of the one-face sealed quartz crystal microbalance (QCM) in a Newtonian liquid. The immersion-angle dependence of ÎF appears below the sucrose concentration of 12 wt.%. However, we found that the transition phenomenon of ÎF occurs between 12 and 20 wt.% and then the immersion-angle dependence of ÎF disappears above 20 wt.% (finally, the ÎF values above 20 wt.% are equal to those of 90° in all immersion angles). In order to obtain further insights into the transition phenomenon and the disappearance of the immersion-angle dependence of ÎF, we investigated the immersion-angle dependence of the electrolytic solution, i.e., NaCl solution. This investigation indicated that this monovalent electrolytic solution causes the immersion-angle dependence but not the transition phenomenon and the disappearance of the immersion-angle dependence of ÎF. On the basis of these results, we suggest that the non-charge of the molecule is the important element to generate the transition phenomenon and the disappearance of the immersion-angle dependence of ÎF.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Minoru Yoshimoto, Yasuhiro Maruyama, Shin Tokimura, Shigeru Kurosawa,