| abstract |
The present invention enables higher-accuracy measurement of the concentration of ions contained in sweat at the time when sweat is produced. A base material 101 is constituted of a flexible resin, and is provided with a hollow section 111 and formed in the shape of a sheet. The base material 101 can be wrapped around, for example, the forearm, the upper arm, the wrist, or the like. A sweat-absorbing section 102 is constituted of a plurality of fibers, is arranged at the hollow section 111, and takes up sweat that has been taken in by a suction port 121. The sweat-absorbing section 102 is constituted of, for example, paper composed of cellulose. A sodium ion detection electrode 103, a potassium ion detection electrode 104, and a reference electrode 105 are configured to contact the sweat that has been suctioned from the suction port 121 of the sweat-absorbing section 102 and taken up into the sweat-absorbing section 102, to detect ions contained in this sweat. |