WO2003019133A3 - Capillary free voltammetric flow cell - Google Patents

Capillary free voltammetric flow cell Download PDF

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Publication number
WO2003019133A3
WO2003019133A3 PCT/IL2002/000704 IL0200704W WO03019133A3 WO 2003019133 A3 WO2003019133 A3 WO 2003019133A3 IL 0200704 W IL0200704 W IL 0200704W WO 03019133 A3 WO03019133 A3 WO 03019133A3
Authority
WO
WIPO (PCT)
Prior art keywords
working electrode
electrode
mercury
channel
cell
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IL2002/000704
Other languages
French (fr)
Other versions
WO2003019133A2 (en
Inventor
Vladimir Dozortsev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IONGUARD Ltd
Original Assignee
IONGUARD Ltd
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 IONGUARD Ltd filed Critical IONGUARD Ltd
Priority to AU2002328138A priority Critical patent/AU2002328138A1/en
Publication of WO2003019133A2 publication Critical patent/WO2003019133A2/en
Anticipated expiration legal-status Critical
Publication of WO2003019133A3 publication Critical patent/WO2003019133A3/en
Ceased legal-status Critical Current

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
    • G01N27/26—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
    • G01N27/34—Dropping-mercury electrodes

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

Abstract

The present invention provides a voltammetric apparatus (10) comprising a) an electroanalytical cell comprising a mercury meniscus electrode as a working electrode (14), a working electrode channel (14) a counter electrode (18), a reference electrode (16), and a measurement channel (24); b) a purification container in connection with the cell for purifying contaminants from the working electrode; and c) a means for delivering the resulting purified mercury from the purification container to the working electrode. The present invention further provides a method for trace element detection comprising the steps of i) providing a voltammetric apparatus comprising a) an electroanalytical cell, the cell comprising a mercury meniscus electrode as a working electrode, a reference electrode, a working electrode channel, and a measurement channel; b) a purification container in connection with the cell for purifying contaminants from the working electrode; and c) a means for delivering the resulting purified mercury from the purification container to the working electrode; ii) introducing a first sample into the measurement channel; iii) delivering mercury from the bottom of the working electrode channel towards the measurement channel, thereby forming a mercury meniscus in contact with the measurement channel, thereby forming the mercury meniscus electrode; and iv) performing at least one measurement, thereby detecting the trace elements in the sample.
PCT/IL2002/000704 2001-08-23 2002-08-25 Capillary free voltammetric flow cell Ceased WO2003019133A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002328138A AU2002328138A1 (en) 2001-08-23 2002-08-25 Capillary free voltammetric flow cell

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31409601P 2001-08-23 2001-08-23
US60/314,096 2001-08-23

Publications (2)

Publication Number Publication Date
WO2003019133A2 WO2003019133A2 (en) 2003-03-06
WO2003019133A3 true WO2003019133A3 (en) 2004-03-11

Family

ID=23218530

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2002/000704 Ceased WO2003019133A2 (en) 2001-08-23 2002-08-25 Capillary free voltammetric flow cell

Country Status (2)

Country Link
AU (1) AU2002328138A1 (en)
WO (1) WO2003019133A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019956A1 (en) * 2015-04-29 2022-06-29 AMS Trace Metals, Inc. Renewable mercury meniscus electrode with mercury circulation system and contaminant removal
US10976294B2 (en) * 2016-07-13 2021-04-13 Ams Trace Metals, Inc. Techniques for toxic metal detection and speciation in aqueous matrices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750460A (en) * 1971-04-09 1973-08-07 Vyzk Ustar Organickkyck Through-flow polarographic analyzer having constant flow facilities
US4094669A (en) * 1976-01-02 1978-06-13 Basf Wyandotte Corporation Polytetrafluoroethylene membrane filters for mercury recovery
JPS5767183A (en) * 1980-10-15 1982-04-23 Mitsubishi Heavy Ind Ltd Method for capturing mercury in waste water
WO1999028738A1 (en) * 1997-12-01 1999-06-10 Verdeco Technologies Ltd. Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750460A (en) * 1971-04-09 1973-08-07 Vyzk Ustar Organickkyck Through-flow polarographic analyzer having constant flow facilities
US4094669A (en) * 1976-01-02 1978-06-13 Basf Wyandotte Corporation Polytetrafluoroethylene membrane filters for mercury recovery
JPS5767183A (en) * 1980-10-15 1982-04-23 Mitsubishi Heavy Ind Ltd Method for capturing mercury in waste water
WO1999028738A1 (en) * 1997-12-01 1999-06-10 Verdeco Technologies Ltd. Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1974-09925V, XP002971494 *
DATABASE WPI Derwent World Patents Index; AN 1982-44755E, XP002971493 *

Also Published As

Publication number Publication date
AU2002328138A1 (en) 2003-03-10
WO2003019133A2 (en) 2003-03-06

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