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Title
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An ISFET-based anion sensor for the potentiometric detection of organic acids in liquid chromatography
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Author
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Abstract
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| 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). (C) 2000 Elsevier Science S.A. All rights reserved. |
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Language
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English
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Source (journal)
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Sensors and actuators : B : chemical. - Lausanne
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Publication
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Lausanne
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2000
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ISSN
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0925-4005
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DOI
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10.1016/S0925-4005(00)00531-1
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Volume/pages
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67
:3
(2000)
, p. 294-299
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ISI
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000088721100012
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Full text (Publisher's DOI)
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