Microelectrodes and amperometric assays
AssigneeEcossensors Limited
InventorsHubert H. J. Girault, Brian J. Seddon
Life of this patent
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Abstract
A photo-ablation technique is used to create apertures (4) in a layer (2) of electrically insulating material and allow electrically conducting material (3) exposed through the apertures to create a microelectrode. The microelectrode can be used for assay methods and in an assay unit.
Claims128
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of thick-film printed electrodes on a substrate;
- (b) electrolytically depositing a metal film upon at least one of the plurality of thick-film printed electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
An apparatus for heavy metal trace testing comprising:
- a plurality of thick-film printed electrodes on a substrate;
- a metal film electrodepositor which electrodeposits a metal film on at least one of said electrodes;
- and
- an electrochemical stripping analyzer which analyzes a sample for heavy metal content with said electrodes.
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of electrodes upon a plastic substrate;
- (b) electrolytically depositing a metal film upon at least one of the plurality of electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
An apparatus for heavy metal testing comprising:
- a plurality of electrodes upon a plastic substrate;
- a metal film electrodepositor which deposits a metal film on said electrodes;
- and
- an electrochemical stripping analyzer which analyzes a sample for heavy metal content with said electrodes.
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of thick-film printed electrodes on a plastic substrate;
- (b) electrolytically depositing a metal film upon at least one of the plurality of thick-film printed electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
An apparatus for heavy metal testing comprising:
- a plurality of thick-film printed electrodes on a plastic substrate;
- a metal film electrodepositor which electrodeposits a metal film on at least one of said thick-film electrodes;
- and
- an electrochemical stripping analyzer which analyzes a sample for heavy metal content with said electrodes.
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of electrodes screen-printed on a substrate;
- (c) electrolytically depositing a metal film upon at least one of the plurality of screen-printed electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
Apparatus for heavy metal trace testing comprising:
- means for providing a plurality of electrodes screen-printed on a substrate;
- means for electrolytically depositing a metal film upon at least one of said plurality of screen-printed electrodes;
- and
- means for analyzing a sample for heavy metal content by electrochemical stripping analysis with said plurality of electrodes.
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of printed electrodes on a substrate;
- (b) electrolytically depositing a metal film upon at least one of the plurality of printed electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
An apparatus for heavy metal trace testing comprising:
- a plurality of printed electrodes on a substrate;
- a metal film electrodepositor adapted to electrodeposit a metal film on at least one of said electrodes;
- and
- an electrochemical stripping analyzer adapted to analyze a sample for heavy metal content with said electrodes.
A method of analyzing trace metals comprising the steps of:
- (a) providing a plurality of printed electrodes on a plastic substrate;
- (b) electrolytically depositing a metal film upon at least one of the plurality of printed electrodes;
- and
- (c) analyzing a sample for heavy metal content by using electrochemical stripping analysis with the plurality of electrodes.
An apparatus for heavy metal testing comprising:
- a plurality of printed electrodes on a plastic substrate;
- a metal film electrodepositor adapted to electrodeposit a metal film on at least one of said electrodes;
- and
- an electrochemical stripping analyzer adapted to analyze a sample for heavy metal content with said electrodes.
A method of analyzing trace metals comprising the steps of:
- a) providing a plurality of flat printed electrodes;
- b) coating at least one of the plurality of flat printed electrodes with a metal film;
- and
- c) analyzing a sample for heavy metal content with the plurality of electrodes;
- wherein said step of providing a plurality of flat printed electrodes further comprises the step of providing at least one flat screen-printed Ag/AgCl reference electrode, and at least one flat screen-printed carbon electrode.
An apparatus for heavy metal trace testing comprising:
- means for providing a plurality of flat printed electrodes;
- means for coating at least one of said plurality of flat printed electrodes with a metal film;
- and
- means for analyzing a sample for heavy metal content with said plurality of electrodes;
- wherein said means for providing at least one of said plurality of flat printed electrodes comprises means for providing at least one flat screen-printed Ag/AgCl reference electrode, and at least one flat screen-printed carbon electrode.
Dependencies are inferred from the claim text.