| 摘要 |
<p>Provided is a gel particle measuring apparatus for detecting a gel particle production starting point with high sensitivity in the measurement of a target substance in a sample by a gelation reaction. The gel particle measuring apparatus includes a sample cell (1) that accommodates a sample (S) and a solution containing a reagent (R), stirring means (2) for stirring a mixed solution (W) including the sample (S) and the solution containing the reagent (R) in the sample cell (1), a coherent light source (3) that irradiates the mixed solution (W) with coherent light (B) in the sample cell (1), transmitted light detecting means (4) that is provided at a position outside the sample cell (1) and on the opposite side of the coherent light source (3) and is used for detecting transmitted light through the mixed solution (W) in the sample cell (1), transmitted light fluctuation detecting means (5) for detecting a fluctuation component of the transmitted light based on the detection output of the transmitted light detecting means (4), and gel particle production determining means (6) for determining at least the production state of gel particles, which leads to timing of phase transition of the mixed solution (W) from a sol phase to a gel phase based on the results of measurement of the transmitted light fluctuation detecting means (5).</p> |
