Referenced Items are not available for this document.
We present a micromachined differential viscosity detector suitable for integration into an on-chip hydrodynamic chromatography system. The general design, however, is applicable to any liquid chromatography system that is used for separation of polymers. The micromachined part of the detector consists of a fluidic Wheatstone bridge and a low hydraulic capacitance pressure sensor of which the pressure sensing is based on optical detection of a membrane deflection. The stand-alone sensor shows a resolution in specific viscosity of 3×10-3, in which specific viscosity is defined as the increase in viscosity by a sample, relative to the baseline viscosity of a solvent.
Published in:
Microelectromechanical Systems, Journal of
(Volume:14
,
Issue:
1
)
Date of Publication: Feb. 2005
- Page(s):
- 70 - 80
- ISSN :
- 1057-7157
- INSPEC Accession Number:
- 8278514
- Digital Object Identifier :
- 10.1109/JMEMS.2004.840452
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 07 February 2005
- Issue Date :
- Feb. 2005
- Sponsored by :
- IEEE Electron Devices Society
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