TITLE

Correction of Mass Effect of Nonelectroded Region of a Quartz Crystal Microbalance (QCM) in Ultra-Micromass Measurement

AUTHOR(S)
Wei Fu; Qingsong Bai; Xianhe Huang
PUB. DATE
January 2016
SOURCE
Sensors & Materials;2016, Vol. 28 Issue 1, p55
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
When applying a quartz crystal microbalance (QCM) to ultra-micromass measurement, not only the electroded region but also the nonelectroded region absorb analytes. The mass loading on the sensing surface of the QCM chip (with both electroded and nonelectroded regions) causes a shift in the frequency of the QCM. A method based on the integral of the mass sensitivity function is presented in this paper which can distinguish between the frequency shift caused by the electroded region and that caused by the nonelectroded region. Finally, the feasibility of the correction method can be confirmed on the basis of the data processing results of an airborne Vaccinia virus testing experiment using a QCM.
ACCESSION #
112833448

 

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