Rapid Droplet-to-Droplet Microextraction on a Piezoelectric Substrate
A rapid droplet-to-droplet microextraction method on a piezoelectric substrate was presented. A pair of interdigital transducers (IDTs) with 27.5MHz center frequency was fabricated on a 128° yx-LiNbO3 substrate using microelectric technology. A RF signal generated by a signal generator was applied t...
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Published in | Applied Mechanics and Materials Vol. 263-266; pp. 350 - 353 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Zurich
Trans Tech Publications Ltd
01.01.2013
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Subjects | |
Online Access | Get full text |
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Summary: | A rapid droplet-to-droplet microextraction method on a piezoelectric substrate was presented. A pair of interdigital transducers (IDTs) with 27.5MHz center frequency was fabricated on a 128° yx-LiNbO3 substrate using microelectric technology. A RF signal generated by a signal generator was applied to one of the IDTs to excite surface acoustic wave. When hit a droplet on the piezoelectric substrate, surface acoustic wave was radiated into the droplet and acoustic streaming was occurred. Droplet-to-droplet microextraction was enhanced due to the acoustic streaming. An ionic liquid and an organic dye solution were used for extraction experiments. Results show that the extraction time is decreased with RF signal power. In addition, extraction kinetics was also studied using an image-based concentration measurement technique. |
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Bibliography: | Selected, peer reviewed papers from the 2012 International Conference on Information Technology and Management Innovation (ICITMI 2012), November 10-11, 2012, Guangzhou, China |
ISBN: | 9783037855744 3037855746 |
ISSN: | 1660-9336 1662-7482 1662-7482 |
DOI: | 10.4028/www.scientific.net/AMM.263-266.350 |