Evanescent wave sensing: new features for detection in small volumes


Pandraud, G. and Koster, T.M. and Gui, C. and Dijkstra, M. and Berg, A. van den and Lambeck, P.V. (2000) Evanescent wave sensing: new features for detection in small volumes. Sensors and actuators A: Physical, 85 (1-3). pp. 158-162. ISSN 0924-4247

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Abstract:The association by aligned direct bonding of an evanescent wave optical sensor and small-volume flow cells for visible absorption detection is demonstrated. We show that for sample volumes ranging from 760 to 190 nl and a sensor interaction length of 1 mm, very small cross-sectional dimensions of fluid channels are no more a serious obstacle for optical detection. The lowest limit for the channel depth is the penetration depth of the
Item Type:Article
Copyright:© 2000 Elsevier
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/15207
Official URL:https://doi.org/10.1016/S0924-4247(00)00367-8
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