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1. US20090184005 - Sensor for Measurement of Hydrogen Sulfide

Office
United States of America
Application Number 11577731
Application Date 12.10.2005
Publication Number 20090184005
Publication Date 23.07.2009
Publication Kind A1
IPC
G01N 27/26
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
Inventors Zhang Xueji
Kraus David
Agents ALIX YALE &; RISTAS LLP
Title
(EN) Sensor for Measurement of Hydrogen Sulfide
Abstract
(EN)

An electrochemical sensor for measurement of hydrogen sulfide is described. The electrochemical sensor comprises an electrolyte; an electrolyte container comprising a hydrogen sulfide permeable membrane; a working electrode and a reference electrode both disposed in the electrolyte; and an instrument capable of maintaining a fixed DC potential in the range of 0 mV to 1,000 mV between the working electrode and the reference electrode. Also a method of detecting hydrogen sulfide in a sample. The method comprises providing an electrochemical sensor; at least partially immersing the gas permeable membrane in the sample; and detecting hydrogen sulfide in the sample. The detection may be qualitative or quantitative.


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