| 摘要 |
A method of assaying a substance having an affinity based on the pearl chain formation of carrier particles. By utilizing carrier particles having a specific particle diameter, the number of carrier particles can be specifically counted even when blood cells coexist therewith. Thus, a whole blood sample can be used as it is as an assay sample without the need of separating the blood serum and blood plasma therefrom. Therefore, there is no need of separating out blood serum and blood plasma in preparation for the assay of a blood ingredient.
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