Electrochemical test strip having a plurality of reaction chambers and methods for using the same
First Claim
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1. An electrochemical test strip comprising:
- (a) a plurality of reaction zones defined by opposing working and reference electrodes separated by a spacer layer; and
(b) a reagent composition present in each of said reaction zones.
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Abstract
Electrochemical test strips and methods for their use in the detection of an analyte in a physiological sample are provided. The subject test strips have a plurality of reaction zones defined by opposing metal electrodes separated by a thin spacer layer. The reagent compositions present in each reaction zone may be the same or different. In addition, each reaction zone may have a separate fluid ingress channel, or two or more of the reaction zones may have fluid ingress channels that merge into a single channel. The subject electrochemical test strips find application in the detection of a wide variety of analytes, and are particularly suited for use the detection of glucose.
27 Citations
25 Claims
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1. An electrochemical test strip comprising:
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(a) a plurality of reaction zones defined by opposing working and reference electrodes separated by a spacer layer; and
(b) a reagent composition present in each of said reaction zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of determining the concentration of an analyte in a physiological sample, said method comprising:
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(a) applying said physiological sample to an electrochemical test strip comprising a plurality of reaction zones defined by opposing working and reference electrodes separated by a spacer layer and a reagent composition present in each of said reaction zones;
(b) detecting an electrical signal in said reaction zone using said metallic electrodes; and
(c) relating said detected electrical signal to the amount of said analyte in said sample. - View Dependent Claims (18, 19)
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- 20. The method according to claim 17, wherein said method comprises employing a meter.
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20-1. A kit for use in determining the concentration of an analyte in a physiological sample, said kit comprising:
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(a) an electrochemical test strip comprising a plurality of reaction zones defined by opposing working and reference electrodes separated by a spacer layer and a reagent composition present in each of said reaction zones; and
(b) at least one of;
(i) a means for obtaining said physiological sample; and
(ii) an analyte standard.
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23. A system for use in determining the concentration of an analyte in a physiological sample, said system comprising:
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(a) an electrochemical test strip comprising a plurality of reaction zones defined by opposing working and reference electrodes separated by a spacer layer and a reagent composition present in each of said reaction zones; and
(b) a meter. - View Dependent Claims (24, 25)
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Specification