Chemically modified ion-sensitive field-effect transistors: elimination of the liquid junction potential in a double sensor flow-injection analysis cell

P.L.H.M. Cobben, Peter L.H.M. Cobben, Richard J.M. Egberink, Johan G. Bomer, Robert Schouwenaar, Zbigniew Brzozka, Piet Bergveld, David Reinhoudt, M. Bos

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Abstract

A flow-through cell was designed that can be used for flow-injection analysis with two chemically modified ion-sensitive field-effect transistors (CHEMFETs) in close proximity. This offers the possibility of a differential measurement without influence of the liquid junction potential. The differential signal of a potassium- and a sodium-selective CHEMFET responded in a Nernstian manner and selectively towards potassium in an excess (fixed) concentration of sodium. A highly lead-selective CHEMFET was used in the same flow cell in combination with a potassium-selective CHEMFET.
Original languageUndefined
Pages (from-to)347-352
JournalAnalytica chimica acta
Volume276
Issue number2
DOIs
Publication statusPublished - 1993

Keywords

  • IR-12573
  • METIS-106754

Cite this

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title = "Chemically modified ion-sensitive field-effect transistors: elimination of the liquid junction potential in a double sensor flow-injection analysis cell",
abstract = "A flow-through cell was designed that can be used for flow-injection analysis with two chemically modified ion-sensitive field-effect transistors (CHEMFETs) in close proximity. This offers the possibility of a differential measurement without influence of the liquid junction potential. The differential signal of a potassium- and a sodium-selective CHEMFET responded in a Nernstian manner and selectively towards potassium in an excess (fixed) concentration of sodium. A highly lead-selective CHEMFET was used in the same flow cell in combination with a potassium-selective CHEMFET.",
keywords = "IR-12573, METIS-106754",
author = "P.L.H.M. Cobben and Cobben, {Peter L.H.M.} and Egberink, {Richard J.M.} and Bomer, {Johan G.} and Robert Schouwenaar and Zbigniew Brzozka and Piet Bergveld and David Reinhoudt and M. Bos",
year = "1993",
doi = "10.1016/0003-2670(93)80403-8",
language = "Undefined",
volume = "276",
pages = "347--352",
journal = "Analytica chimica acta",
issn = "0003-2670",
publisher = "Elsevier",
number = "2",

}

Chemically modified ion-sensitive field-effect transistors: elimination of the liquid junction potential in a double sensor flow-injection analysis cell. / Cobben, P.L.H.M.; Cobben, Peter L.H.M.; Egberink, Richard J.M.; Bomer, Johan G.; Schouwenaar, Robert; Brzozka, Zbigniew; Bergveld, Piet; Reinhoudt, David; Bos, M.

In: Analytica chimica acta, Vol. 276, No. 2, 1993, p. 347-352.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Chemically modified ion-sensitive field-effect transistors: elimination of the liquid junction potential in a double sensor flow-injection analysis cell

AU - Cobben, P.L.H.M.

AU - Cobben, Peter L.H.M.

AU - Egberink, Richard J.M.

AU - Bomer, Johan G.

AU - Schouwenaar, Robert

AU - Brzozka, Zbigniew

AU - Bergveld, Piet

AU - Reinhoudt, David

AU - Bos, M.

PY - 1993

Y1 - 1993

N2 - A flow-through cell was designed that can be used for flow-injection analysis with two chemically modified ion-sensitive field-effect transistors (CHEMFETs) in close proximity. This offers the possibility of a differential measurement without influence of the liquid junction potential. The differential signal of a potassium- and a sodium-selective CHEMFET responded in a Nernstian manner and selectively towards potassium in an excess (fixed) concentration of sodium. A highly lead-selective CHEMFET was used in the same flow cell in combination with a potassium-selective CHEMFET.

AB - A flow-through cell was designed that can be used for flow-injection analysis with two chemically modified ion-sensitive field-effect transistors (CHEMFETs) in close proximity. This offers the possibility of a differential measurement without influence of the liquid junction potential. The differential signal of a potassium- and a sodium-selective CHEMFET responded in a Nernstian manner and selectively towards potassium in an excess (fixed) concentration of sodium. A highly lead-selective CHEMFET was used in the same flow cell in combination with a potassium-selective CHEMFET.

KW - IR-12573

KW - METIS-106754

U2 - 10.1016/0003-2670(93)80403-8

DO - 10.1016/0003-2670(93)80403-8

M3 - Article

VL - 276

SP - 347

EP - 352

JO - Analytica chimica acta

JF - Analytica chimica acta

SN - 0003-2670

IS - 2

ER -