MY155093A - Sensors for detecting heavy metals - Google Patents

Sensors for detecting heavy metals

Info

Publication number
MY155093A
MY155093A MYPI2012001289A MYPI2012001289A MY155093A MY 155093 A MY155093 A MY 155093A MY PI2012001289 A MYPI2012001289 A MY PI2012001289A MY PI2012001289 A MYPI2012001289 A MY PI2012001289A MY 155093 A MY155093 A MY 155093A
Authority
MY
Malaysia
Prior art keywords
lead
channel
sensor
conductivity
low impedance
Prior art date
Application number
MYPI2012001289A
Inventor
Mohd Rais Dr Ahmad
Nur Azera Tuhaime
Original Assignee
Mimos Berhad
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mimos Berhad filed Critical Mimos Berhad
Priority to MYPI2012001289A priority Critical patent/MY155093A/en
Priority to PCT/MY2013/000053 priority patent/WO2013141692A1/en
Publication of MY155093A publication Critical patent/MY155093A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/333—Ion-selective electrodes or membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

SELECTIVE LEAD (II) ION SENSOR (100) WITHOUT USING REFERENCE ELECTRODE IS USED TO MONITOR INDUSTRIAL DISCHARGE AND QUALITY OF WATER IN THE RIVERS, ESPECIALLY THOSE USED TO SUPPLY FRESH WATER FOR DAILY USE. THE LEAD SENSOR (100) OF THE PRESENT INVENTION COMPRISES MULTIPLE NARROW AND ELONGATED CHANNELS FILLED WITH LEAD RECOGNIZING MOLECULE (106), IMMOBILIZED BY LOW IMPEDANCE POLYMERIC BINDER (102). THE SENSING CHANNEL IS SANDWICHED BETWEEN AT LEAST TWO ELECTRODES (110) TO MEASURE THE CURRENT AND CONDUCTANCE ACROSS THE CHANNEL. THE BASELINE CONDUCTANCE OF THE CHANNEL IS ADJUSTED USING CONDUCTIVE PARTICLES (104) SUCH AS CARBON NANOTUBES AND PLATINUM NANOPARTICLES. THE DETECTION LIMIT AND LINEAR RANGE OF THE LEAD SENSOR (100) CAN BE OPTIMIZED BY CHANGING THE COMPOSITION OF THE MAIN COMPONENTS; LEAD IONOPHORE (106), LOW IMPEDANCE BINDER (102) AND CONDUCTIVE FILLER (104). THE PRESENCE OF TRACE AMOUNT OF LEAD ION CAN BE DETECTED FROM THE CHANGE IN THE CONDUCTIVITY ACROSS THE CHANNEL. THE PRESENCE OF LEAD IONS LINEARLY INCREASES THE CONDUCTIVITY OF THE SENSING CHANNEL. THE MOST ILLUSTRATIVE DRAWING IS
MYPI2012001289A 2012-03-21 2012-03-21 Sensors for detecting heavy metals MY155093A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2012001289A MY155093A (en) 2012-03-21 2012-03-21 Sensors for detecting heavy metals
PCT/MY2013/000053 WO2013141692A1 (en) 2012-03-21 2013-03-18 Sensors for detecting heavy metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2012001289A MY155093A (en) 2012-03-21 2012-03-21 Sensors for detecting heavy metals

Publications (1)

Publication Number Publication Date
MY155093A true MY155093A (en) 2015-09-15

Family

ID=48191020

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012001289A MY155093A (en) 2012-03-21 2012-03-21 Sensors for detecting heavy metals

Country Status (2)

Country Link
MY (1) MY155093A (en)
WO (1) WO2013141692A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198555B (en) * 2014-09-16 2016-08-24 重庆大学 A kind of poly-porphyrin/In Glassy Carbon Electrode Modified With Nano-gold, preparation method and applications
CN106996945A (en) * 2016-01-23 2017-08-01 江南石墨烯研究院 A kind of noble metal decorated method of lead ion sensor
CN106290532B (en) * 2016-09-28 2019-03-05 三峡大学 A kind of intelligent water quality trace heavy metal on-line monitoring and early warning system of internet of things oriented
CN110651181B (en) 2017-05-22 2023-05-30 密歇根大学董事会 Drinking water heavy metal sensor and use method thereof
US11371978B1 (en) 2021-06-23 2022-06-28 Mks Vision, Llc System and method for detecting lead in water
CN115184424B (en) * 2022-07-08 2024-01-16 湖南大学 Method for detecting lead, detection electrode, electrochemical sensor and preparation method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005515A1 (en) * 1997-07-24 1999-02-04 Orion Research, Inc. Low detection limit ion selective membrane electrodes

Also Published As

Publication number Publication date
WO2013141692A1 (en) 2013-09-26

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