Published December 1992 | Version v1
Journal article Metadata-only

Determination of pH of fluoride-containing solutions using ion selective field transistor with tantalum(5) oxide film

Creators

  • 1. Leningradskij Gosudarstvennyj Univ., Leningrad (Russian Federation)

Description

The paper deals with peculiarities of electrode behaviour of ion-selective field transistor (ISFT) with Ta2O5 film in KF solutions with concentration up to 2.5 m in the range of pH values from 0 to 12. Accuracy of pH value determination is ± 0.05 pH for solutions with KF concentration lower 1.0 m and it goes down to ± 0.1 pH in solutions with KF concentration 2.0-2.5 m as a result of ISFT characteristics instability growth which is related to oxide film dissolution rate increase. 4 refs., 1 fig

Additional details

Additional titles

Original title (Russian)
Определение пх фторидсодержащих растворов ионселективным полевым транзистором с пленкой оксида тантала(5)

Publishing Information

Journal Title
Zhurnal Prikladnoj Khimii
Journal Volume
65
Journal Issue
12
Journal Page Range
p. 2802-2803.
ISSN
0044-4618
CODEN
ZPKHAB

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
25042941
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AQUEOUS SOLUTIONS; CONCENTRATION RATIO; ELECTRODES; FIELD EFFECT TRANSISTORS; FILMS; PH VALUE; POTASSIUM FLUORIDES; TANTALUM OXIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; CHALCOGENIDES; DISPERSIONS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; MIXTURES; OXIDES; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; SEMICONDUCTOR DEVICES; SOLUTIONS; TANTALUM COMPOUNDS; TRANSISTORS; TRANSITION ELEMENT COMPOUNDS