Blood urea nitrogen (BUN) sensor
First Claim
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1. A device comprising a single membrane comprising a water-permeable matrix, urease and carbonic anhydrase, wherein the urease and carbonic anhydrase are immobilized on at least a portion of a single electrode, and wherein the device is configured to inhibit carbon dioxide exchange from a sample to an air space in a region of the membrane.
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Abstract
A BUN (blood urea nitrogen) sensor containing immobilized carbonic anhydrase and immobilized urease for the in vitro detection of urea nitrogen in blood and biological samples with improved performance and precision characteristics.
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Citations
14 Claims
- 1. A device comprising a single membrane comprising a water-permeable matrix, urease and carbonic anhydrase, wherein the urease and carbonic anhydrase are immobilized on at least a portion of a single electrode, and wherein the device is configured to inhibit carbon dioxide exchange from a sample to an air space in a region of the membrane.
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