| abstract |
Electrochemical evaluation of a sample introduced into a well with good workability is performed. A well unit 1 in which a well 2 is formed, and an electrode 3 is provided on a surface of the well 2. A metal wire 4 is embedded in the well unit 1, and the well unit 1 is cut so as to cut the metal wire 4 to form a well 2 in the well unit 1. Then, a cross section of the cut metal wire 4 is used as the electrode 3. A sample is introduced into the well 2, the potential of the electrode 3 is controlled so that the potential of the electrode 3 becomes the oxidation-reduction potential to be measured, and the value of the current flowing through the electrode 3 is measured. And based on this electric current value, the electrochemical evaluation and electrocatalytic activity evaluation of a sample to be measured are performed. Examples of the measurement target sample include biological substances such as mammalian fertilized eggs, inorganic ions, and the like. [Selection] Figure 1 |