A differential viscosity detector for use in miniaturized chemical separation systems

Share/Save/Bookmark

Blom, Marko T. and Chmela, Emil and Heyden van der, Frank H.J. and Oosterbroek, R. Edwin and Tijssen, Robert and Elwenspoek, Miko and Berg van den, Albert (2005) A differential viscosity detector for use in miniaturized chemical separation systems. Journal of Microelectromechanical Systems, 14 (1). pp. 70-80. ISSN 1057-7157

[img]
Preview
PDF
1040Kb
Abstract: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/spl times/10/sup -3/, in which specific viscosity is defined as the increase in viscosity by a sample, relative to the baseline viscosity of a solvent.
Item Type:Article
Copyright:© 2005 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/50944
Official URL:http://dx.doi.org/10.1109/JMEMS.2004.840452
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 223757