An apparatus for measuring the temperature parameters of an ISFET that uses hydrogenated amorphous silicon as a sensing film, which uses the measurements of the temperature parameters and the sourcedrain current and gate voltage in an unknown solution to sense the ion concentration and the pH value of the unknown solution. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. New devices can be supported by the framework without disrupting existing devices or the host application. A ligand for the polymeric compound includes a chain or cyclic ligand, of which a bidentate ligand having an organic cyclic structure is preferred, and the ligand has at least one carbon atom or oxygen atom and is bonded to a center metal atom, preferably iridium, via the carbon atom or oxygen atom. The wire winding machine includes a portable operator console, and a network interface.