| abstract |
(57) Summary A biosensor and method for measuring hematocrit levels in whole blood using electrochemistry. The biosensor includes a working electrode and a counter electrode. The porous membrane is impregnated with the electroactive compound and is spatially separated from the surface of the electrode. When the whole blood sample is added to the porous substrate, it forms a mixture of electroactive compound and blood. The mixture settles on the electrodes, and a potential difference is applied to the mixture sufficient to oxidize or reduce the electroactive compound and generate an electric current. This current is measurable and correlates to the hematocrit level. |