Gel particle measuring method and apparatus

摘要

Scattered light is detected by light irradiation at the start of gel particle generation, and the scattering light attenuation is suppressed in a solvent where the phenomenon occurs, and measurement is performed quickly and accurately. A sample cell 1 containing a solution containing a sample S and a reagent R, a stirring means 2 for continuously stirring a mixed solution W in the sample cell 1, and a mixed solution W in the sample cell 1 A light source 3 that emits coherent light Bm, backscattered light detection means 4 that detects a backscattered light component returning in the direction of the light source 3 among the light scattered in the mixed solution W in the sample cell 1, and a sample Of the light scattered in the mixed solution W in the cell 1, the sample optical path ST toward the backscattered light detection means 4 and the reflected light path DT of the light Bm0 reflected on the surface of the sample cell 1 are made different. An optical path adjusting unit 5 that adjusts the surface of the incident portion of the cell 1 and a measuring unit 6 that determines at least the generation start time of the gel particles G in the mixed solution W based on the detection output of the backscattered light detecting unit 4. . [Selection] Figure 1