SENSOR FOR DETERMINING THE CONCENTRATION OF AN ACIDIC OR BASIC COMPOUND AND USE OF A WATER-SOLUBLE PROTECTIVE LAYER HAVING PH BUFFERING PROPERTIES FOR PROTECTING THE SAME

SENSOR FOR DETERMINING THE CONCENTRATION OF AN ACIDIC OR BASIC COMPOUND AND USE OF A WATER-SOLUBLE PROTECTIVE LAYER HAVING PH BUFFERING PROPERTIES FOR PROTECTING THE SAME

The present invention relates to a sensor for determining the concentration of an acidic or basic compound dissolved in water, wherein the determination is based on an ingress of gas or vapor of said compound, causing a change in pH value, within an inner buffer separated from a sample side by a mem...

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Hauptverfasser: AIGNER, Daniel, RIECHERS, Daniel, GSTREIN, Xaver
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Sprache:eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator AIGNER, Daniel
RIECHERS, Daniel
GSTREIN, Xaver
description The present invention relates to a sensor for determining the concentration of an acidic or basic compound dissolved in water, wherein the determination is based on an ingress of gas or vapor of said compound, causing a change in pH value, within an inner buffer separated from a sample side by a membrane that is permeable to gases and impermeable to ions, characterized in that a layer is provided between the membrane and the sample side, wherein the layer substantially covers the membrane, wherein the layer is water-soluble and has pH buffering properties. The present invention further relates to the use of a water-soluble layer having pH buffering properties for protecting a sensor for determining the concentration of an acidic or basic compound from ingress of an acidic or basic gas during non-use of the sensor.
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title SENSOR FOR DETERMINING THE CONCENTRATION OF AN ACIDIC OR BASIC COMPOUND AND USE OF A WATER-SOLUBLE PROTECTIVE LAYER HAVING PH BUFFERING PROPERTIES FOR PROTECTING THE SAME
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