| 摘要 |
<p>A highly accurate biosensor exhibiting excellent response in which blood plasma obtained by filtering blood reaches an electrode system quickly. The biosensor comprises an insulating substrate, an electrode system including a working electrode and a counter electrode provided on the insulating substrate, a reaction layer containing at least an oxidation-reduction enzyme and an electron mediator, a sample supply passage including the electrode system and the reaction layer and having an inlet and an air hole, a sample liquid supply section for introducing the sample liquid located remotely from the sample supply passage, and a first filter, for filtering the sample liquid, interposed between the sample liquid supply passage and the sample liquid supply section, wherein the liquid filtered through the first filter is supplied into the sample liquid supply passage through capillarity. The sample liquid passes through the first filter in the direction orthogonal to the direction of the filtered liquid passing through the sample liquid supply passage.</p> |
