| 摘要 |
PROBLEM TO BE SOLVED: To provide a practical analyzer having high sensitivity and high versatility wherein a conventional problem is solved in a test material measuring field using magnetic particles. SOLUTION: This analyzer has (1) (A) a magnetosensitive body formed on an insulating substrate or on a substrate having insulating property, and having as a magnetosensitive part a semiconductor thin film whose electric characteristic is changed by Lorentz force caused by a magnetic field when the magnetic fields is applied thereto, and (B) a magnetometric sensor provided on the surface of the thin film, and comprising a material layer for fixing the magnetic particles on the magnetometric sensor through a detection material by specific bonding, (2) a means for applying the magnetic field to the magnetometric sensor, and (3) a means for detecting a signal corresponding to existence of the magnetic particles on the magnetometric sensor surface or a signal corresponding to the quantity of the magnetic particles. The analyzer measures the test material in analysis solution simply with high sensitively in medical diagnosis, environmental measurement or the like. COPYRIGHT: (C)2005,JPO&NCIPI
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