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1. MX2017007193 - DISPOSITIVO Y METODO DE DETECCION DE CONTAMINANTES.

Office
Mexico
Application Number 2017007193
Application Date 05.06.2017
Publication Number 2017007193
Publication Date 28.08.2017
Publication Kind A
IPC
G01N 27/06
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
02by investigating impedance
04by investigating resistance
06of a liquid
CPC
G01N 27/4167
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
416Systems
4166measuring a particular property of an electrolyte
4167pH
G01N 27/42
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
416Systems
42Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
G01N 33/1813
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
18Water
1813specific cations in water, e.g. heavy metals
G01N 27/302
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
302pH sensitive, e.g. quinhydron, antimony or hydrogen electrodes
G01N 27/308
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
308at least partially made of carbon
G01N 27/333
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
333Ion-selective electrodes or membranes
Applicants UWM RESEARCH FOUNDATION, INC.
Inventors Sundaram GUNASEKARAN
Woo- Jin CHANG
Jiang YANG
Rajesh SEENIVASAN
Priority Data 62/087,032 03.12.2014 US
62/145,826 03.12.2014 US
Title
(ES) DISPOSITIVO Y METODO DE DETECCION DE CONTAMINANTES.
Abstract
(EN) A device for measuring pH levels and contaminant concentration includes an electrode assembly that is electrically coupled to a control unit. The electrode assembly includes a first contact electrically coupled to a reference electrode, a second contact electrically coupled to a working electrode, and a third contact electrically coupled to a counter electrode. The working electrode may be modified to include a cysteine functionalized graphene oxide with polypyrrole nanocomposite. In operation, the control unit may apply a complex signal to the working electrode via the second contact in order to adhere and subsequently strip contaminant ions from the fluid sample to the working electrode. During this process, a current may be measured across the reference electrode and the counter electrode to measure contaminant ion concentration. The pH of the fluid sample may also be determined by a current measured across the reference electrode and the counter electrode. In some examples, the pH may be used to calibrate the measured levels of the contaminant ions.