TY - JOUR
T1 - Chemically modified ion-sensitive field-effect transistors
T2 - application in flow-injection analysis cells without polymeric encapsulation and wire bonding
AU - Cobben, Peter L.H.M.
AU - Egberink, Richard J.M.
AU - Bomer, Johan G.
AU - Sudhölter, Ernst J.R.
AU - Bergveld, Piet
AU - Reinhoudt, David N.
PY - 1991
Y1 - 1991
N2 - New wall jet and flow-through cells have been developed which can be used for flow-injection analysis using chemically modified ion-sensitive field-effect transistors (CHEMFETs). In these designs traditional bonding and encapsulation with epoxy resin have become superfluous. This ISFET chip has been designed to meet the requirements of these two cell types. Measurements with plasticized PVC-valinomycin-modified CHEMFETs in these flow cells are presented. The effects of flow-rate and sample size on the recorded peak were investigated. The operational performance of the wall jet and flow-through cells were compared; the recorded peaks with the wall jet cell are less symmetrical than those with the flow-through cell.
AB - New wall jet and flow-through cells have been developed which can be used for flow-injection analysis using chemically modified ion-sensitive field-effect transistors (CHEMFETs). In these designs traditional bonding and encapsulation with epoxy resin have become superfluous. This ISFET chip has been designed to meet the requirements of these two cell types. Measurements with plasticized PVC-valinomycin-modified CHEMFETs in these flow cells are presented. The effects of flow-rate and sample size on the recorded peak were investigated. The operational performance of the wall jet and flow-through cells were compared; the recorded peaks with the wall jet cell are less symmetrical than those with the flow-through cell.
KW - Flow system
KW - Flow cells
KW - Ion-selective field-effect transistors
U2 - 10.1016/S0003-2670(00)84646-2
DO - 10.1016/S0003-2670(00)84646-2
M3 - Article
SN - 0003-2670
VL - 248
SP - 307
EP - 313
JO - Analytica chimica acta
JF - Analytica chimica acta
IS - 2
ER -