| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simplified method (for example, compactness of a device to be used, decrease in costs) compared to an official analysis method, permitting a highly sensitive and highly precise analysis (for example, measurement of trace metal ions) easily in short time and dispensing with consideration of handling of dangerous objects, environmental pollution, etc. <P>SOLUTION: A ligand (solochrome violet RS) is compounded to an analysis object 1a, and a complex compound of a measurement object (Al<SP>3+</SP>, etc.) in the analysis object 1a with the ligand is formed. Then, a working electrode 2, a counter electrode 3, and a reference electrode 4 are dipped into the analysis object 1a, the electric potential of the working electrode 2 is kept at a positive electric potential (an electric potential at which the ligand oxidizes), and the complex compound is absorbed to the working electrode 2. By sweeping the electric potential of the working electrode 2 in the negative electric potential direction, the complex compound is eluted in the analysis object, and a current change for an electric potential change of the working electrode 2 is detected. <P>COPYRIGHT: (C)2007,JPO&INPIT |
