fe (ii) ion-selective membrane electrode based ontetra-phenyl porphyrin in pvc matrix
نویسندگان
چکیده
fe2+ ion-selective membrane sensor has been fabricated from polyvinyl chloride (pvc) matrixmembrane containing neutral carrier tetra phenyl porphyrin (tpp) ionophore. the addition ofsodium tetraphenylborate (natpb) and the plasticizer dbp has been found to substantiallyimprove the performance of the sensor. the best performance was obtained with the sensor havinga membrane of composition of tpp: natpb: dbp: pvc in the ratio 6:3:61:30 respectively. thesensor shows a linear response over a wide concentration range of 1.0 x 10-6 to 1.0 x 10-2 m witha nemstian slope of 29.4 ± 0.6 mv decade-1 and a detection limit of 9.6 x 10-7 m. it has aresponse time of
منابع مشابه
Fe (II) Ion-Selective Membrane Electrode based onTetra-Phenyl Porphyrin in PVC Matrix
Fe2+ ion-selective membrane sensor has been fabricated from polyvinyl chloride (PVC) matrixmembrane containing neutral carrier tetra phenyl porphyrin (TPP) ionophore. The addition ofsodium tetraphenylborate (NaTPB) and the plasticizer DBP has been found to substantiallyimprove the performance of the sensor. The best performance was obtained with the sensor havinga membrane of composition of TPP...
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عنوان ژورنال:
journal of physical & theoretical chemistryISSN
دوره 5
شماره 3 2008
کلمات کلیدی
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