ELEMENT SENSITIVE TO CONCENTRATION OF GASES

FIELD: analytic instrumentation, elements sensitive to composition of gases. SUBSTANCE: technical result of invention lies in provision for capability to determine concentrations of gases and gaseous complex substances in air and in atmosphere of inert gases both in direct contact with gaseous subst...

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Hauptverfasser: CHUGUNOV L.S, RADIN S.A, TEREKHOV A.K
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creator CHUGUNOV L.S
RADIN S.A
TEREKHOV A.K
description FIELD: analytic instrumentation, elements sensitive to composition of gases. SUBSTANCE: technical result of invention lies in provision for capability to determine concentrations of gases and gaseous complex substances in air and in atmosphere of inert gases both in direct contact with gaseous substance and at some distance of element from analyzed gas. Sensitive coat in the form of film comprising mixture of conductive polymers is deposited on interpenetrating comb electrodes. Mixture includes three conductive polymers: polystanumaniline, polysilanoaniline and polyaniline in mass ratio 7: 4: 2 produced from solution composed of single-molar solution, hydrochloric acid and mixture of monomers of aniline, silanoaniline and stanumaniline in baths under mode of potentiostatic cycling with potentials from 5.5 to 7.0 V and from -2.0 to -3.5 V at working electrode. Constant stabilized electric current with strength from 200.0 to 1000.0 mkA is transmitted through electrodes of sensitive element for selective change of electrophysical parameters of synthesized sensitive coat exposed to infrared radiation of certain wave length. EFFECT: capability to determine concentrations of gases and gaseous substances in air and in atmosphere of inert gases. 1 dwg
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title ELEMENT SENSITIVE TO CONCENTRATION OF GASES
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