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1. CN107466367 - CONTAMINANT DETECTION DEVICE AND METHOD

Office
China
Application Number 201580075399.2
Application Date 03.12.2015
Publication Number 107466367
Publication Date 12.12.2017
Publication Kind A
IPC
G01N 27/416
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
416Systems
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, electro-chemical, 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 33/18
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/-G01N31/131
18Water
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 RES FOUNDATION INC
Inventors GUNASEKARAN SUNDARAM
CHANG WOO-JIN
YANG JIANG
SEENIVASAN RAJESH
Priority Data 62/087032 03.12.2014 US
62/145826 10.04.2015 US
Title
(EN) CONTAMINANT DETECTION DEVICE AND METHOD
(ZH) 污染物检测装置和方法
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.
(ZH) 一种用于测定pH水平和污染物浓度的装置包括电连接到控制单元的电极组合件。电极组合件包括电连接到参比电极的第一触点、电连接到工作电极的第二触点和电连接到对电极的第三触点。可使工作电极改性,以包括半胱氨酸官能化氧化石墨烯与聚吡咯纳米复合物。在操作中,控制单元可通过第二触点对工作电极施加复合信号,以使污染物离子从流体样品附着到工作电极,随后溶出。在此过程期间,可跨参比电极和对电极测量电流,以测定污染物离子浓度。通过跨参比电极和对电极测量的电流,也可测定流体样品的pH。在一些实例中,可用pH校准污染物离子的测定水平。