An ISFET-based anion sensor for the potentiometric detection of organic acids in liquid chromatography

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Poels, I. and Schasfoort, R.B.M. and Picioreanu, S. and Frank, J. and Dedem van, G.W.K. and Berg van den, A. and Nagels, L.J. (2000) An ISFET-based anion sensor for the potentiometric detection of organic acids in liquid chromatography. Sensors and Actuators B: Chemical, 67 (3). pp. 294-299. ISSN 0925-4005

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Abstract:An ion-selective field effect transistor (ISFET) was applied as a potentiometric detector in liquid chromatography (LC) for the determination of organic acids. The ISFET was prepared by coating the gate insulator of the encapsulated transistor with a poly(vinyl chloride) (PVC) matrix membrane containing methyltridodecylammoniumchloride, which enables the detection of organic anions. The ISFET was tested for its applicability as detector for carboxylic acids in ion-exchange and reversed-phase chromatography. Its analytical characteristics were compared to those of a coated-wire electrode (CWE) and of a conventional type of ion-selective electrode (ISE).
Item Type:Article
Copyright:© 2000 Elsevier
Faculty:
Science and Technology (TNW)
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/14644
Official URL:http://dx.doi.org/10.1016/S0925-4005(00)00531-1
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