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Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions

This project investigated the resonance frequency response of Quartz Crystal Microbalance (QCM) with different metal electrodes in different type of liquids. The study investigates the relationship of the density and viscosity of the solutions as a function of the resonance frequency shift (ΔFw) of...

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Main Author: Abdul Aziz, Siti Salmiwati
Format: Thesis
Language:English
English
Published: 2008
Online Access:http://psasir.upm.edu.my/id/eprint/5097/1/FS_2008_5.pdf
http://psasir.upm.edu.my/id/eprint/5097/
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spelling my.upm.eprints.50972013-05-27T07:20:23Z http://psasir.upm.edu.my/id/eprint/5097/ Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions Abdul Aziz, Siti Salmiwati This project investigated the resonance frequency response of Quartz Crystal Microbalance (QCM) with different metal electrodes in different type of liquids. The study investigates the relationship of the density and viscosity of the solutions as a function of the resonance frequency shift (ΔFw) of the QCMs. The technique used was based on the principle of electromechanical coupling of piezoelectric Quartz Crystal Microbalance. In this study, QCMs of 10 MHz fundamental frequency with chromium, molybdenum, tungsten and gold electrodes were used to measure their ΔFw in saccharide solutions. The quartz crystal was clamped between two O-rings in a liquid flow cell. Only one side of the crystal was exposed to the solutions which flow through it propelled by a micro-tube pump. A total of six different saccharide solutions were chosen. The saccharide samples (glucose, fructose, mannose, sucrose, maltose and lactose) were prepared as solutions with different concentrations. All the measurements were carried out at room temperature, 26.5 ± 0.5 °C. The research demonstrates that the interaction of the vibrating quartz crystal with the liquid medium is expressed by a decrease in the resonance frequency, which is proportional to the product of the square root of the solution viscosity and density. The increase in the viscosity of the liquid also causes the vibrating mass to increase on the quartz crystal surface, and this make resonance frequency decreases. The aim of the study was to achieve an understanding of the information provided by measuring the shifts in the resonance frequency of the QCM with different metal electrodes (Cr, Mo, W, and Au) in saccharide solutions. Resonance frequency shift (ΔFw) of the QCM with gold electrodes was found more responsive compared to chromium, molybdenum and tungsten electrodes in saccharide solutions. The determination of parameter K, the coefficient of the equation that governs the relationship between ΔFw , viscosity and density is one of the major objectives of the project. It was found that value K changes with different saccharide solutions in the range of 0.647x104-3.234x104 cm2 g-1 s-1/2. 2008 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5097/1/FS_2008_5.pdf Abdul Aziz, Siti Salmiwati (2008) Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions. Masters thesis, Universiti Putra Malaysia. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description This project investigated the resonance frequency response of Quartz Crystal Microbalance (QCM) with different metal electrodes in different type of liquids. The study investigates the relationship of the density and viscosity of the solutions as a function of the resonance frequency shift (ΔFw) of the QCMs. The technique used was based on the principle of electromechanical coupling of piezoelectric Quartz Crystal Microbalance. In this study, QCMs of 10 MHz fundamental frequency with chromium, molybdenum, tungsten and gold electrodes were used to measure their ΔFw in saccharide solutions. The quartz crystal was clamped between two O-rings in a liquid flow cell. Only one side of the crystal was exposed to the solutions which flow through it propelled by a micro-tube pump. A total of six different saccharide solutions were chosen. The saccharide samples (glucose, fructose, mannose, sucrose, maltose and lactose) were prepared as solutions with different concentrations. All the measurements were carried out at room temperature, 26.5 ± 0.5 °C. The research demonstrates that the interaction of the vibrating quartz crystal with the liquid medium is expressed by a decrease in the resonance frequency, which is proportional to the product of the square root of the solution viscosity and density. The increase in the viscosity of the liquid also causes the vibrating mass to increase on the quartz crystal surface, and this make resonance frequency decreases. The aim of the study was to achieve an understanding of the information provided by measuring the shifts in the resonance frequency of the QCM with different metal electrodes (Cr, Mo, W, and Au) in saccharide solutions. Resonance frequency shift (ΔFw) of the QCM with gold electrodes was found more responsive compared to chromium, molybdenum and tungsten electrodes in saccharide solutions. The determination of parameter K, the coefficient of the equation that governs the relationship between ΔFw , viscosity and density is one of the major objectives of the project. It was found that value K changes with different saccharide solutions in the range of 0.647x104-3.234x104 cm2 g-1 s-1/2.
format Thesis
author Abdul Aziz, Siti Salmiwati
spellingShingle Abdul Aziz, Siti Salmiwati
Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
author_facet Abdul Aziz, Siti Salmiwati
author_sort Abdul Aziz, Siti Salmiwati
title Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
title_short Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
title_full Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
title_fullStr Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
title_full_unstemmed Resonance Frequency Response of Quartz Crystal Microbalance with Different Metal Electrodes in Saccharide Solutions
title_sort resonance frequency response of quartz crystal microbalance with different metal electrodes in saccharide solutions
publishDate 2008
url http://psasir.upm.edu.my/id/eprint/5097/1/FS_2008_5.pdf
http://psasir.upm.edu.my/id/eprint/5097/
_version_ 1643823090461835264
score 13.211869

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