Sharp Kabushiki Kaisha Corporation

Yuichiro Shimizu

Naomi Asano

Ikuo Nakano

Yoshiro Akagi

Provided a microdevice capable of performing analysis quickly and at a high level of sensitivity even when a minute amount of sample solution is used. The microdevice is equipped with a rotation board, a reaction field provided on the rotation board, and an introduction portion for introducing a solution into the reaction field. The microdevice is characterized in that the following angle is always 45 to 90&#xb0;: an angle of a part of a wall surface of the reaction field where the centrifugal force has the greatest effect with respect to the direction of the centrifugal force generated when the rotation board is rotated.

Microdevice, microchip apparatus and analysis method utilizing the same

In order to realize an accurate electrochemical measurement without a peak caused due to a silver chloride complex ion, an electrochemical measurement electrode of the present invention which measures an electrochemical active substance in a sample solution containing a chloride ion includes (i) a working electrode, (ii) a reference electrode made of silver and silver chloride, and (iii) a silver ion capturing material which captures a silver ion out of a silver chloride complex ion generated in the reference electrode.

Electrochemical measurement electrode, electrochemical measurement electrode chip, and electrochemical measuring method and analysis method using the same

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Osaka, Japan

Yuichiro Shimizu