Pulsed electrochemical detection method
First Claim
1. A pulsed electrochemical detection method comprising the steps of(a) flowing a liquid sample stream including at least one analyte past a working electrode in a flow-through cell;
- (b) applying at least three pulsed electrical potentials to said working electrode, (1) a first conditioning potential, (2) a second detection and oxidative cleaning potential, and (3) a third reductive cleaning potential, said second potential being higher than said first and third potentials and said first potential being higher than said third potential; and
(c) detecting the output from said working electrode during at least part of the time period of applying said second potential.
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Abstract
In one embodiment, the present invention is directed to a pulsed electrochemical detection method comprising (a) flowing a liquid sample stream including at least one analyte past a working electrode in a flow-through cell; (b) applying at least three pulsed electrical potentials to the working electrode, (1) a first conditioning potential, (2) a second detection and oxidative cleaning potential, and (3) a third reductive cleaning potential, said second potential being higher than said first and third potentials and said first potential being higher than said third potential; and (c) detecting the output from said working electrode during the time period of applying said second potential.
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14 Claims
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1. A pulsed electrochemical detection method comprising the steps of
(a) flowing a liquid sample stream including at least one analyte past a working electrode in a flow-through cell; -
(b) applying at least three pulsed electrical potentials to said working electrode, (1) a first conditioning potential, (2) a second detection and oxidative cleaning potential, and (3) a third reductive cleaning potential, said second potential being higher than said first and third potentials and said first potential being higher than said third potential; and (c) detecting the output from said working electrode during at least part of the time period of applying said second potential. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification