| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a simple evaluation method for the concentration of an organic substance, capable of evaluating the concentration of an organic substance contained in a solution containing a metallic salt simply and with relatively excellent accuracy.SOLUTION: In a simple evaluation method for the concentration of an organic substance contained in a solution containing a metallic salt, the concentration is determined from a contact angle with a drop depositing jig of the solution. The simple evaluation method for the concentration of an organic substance contained in a solution containing a metallic salt includes: a first step of measuring the contact angle with the drop depositing jig of the solution containing a metallic salt, the concentration of the organic substance contained being known, and obtaining a correlation between the concentration of the organic substance and the contact angle; a second step of measuring a contact angle with the drop depositing jig of a solution to be evaluated, the concentration of the organic substance contained being unknown; and a third step of evaluating the concentration of the organic substance contained in the solution to be evaluated, by referring to the correlation between the concentration of the organic substance and the contact angle obtained in the first step and the contact angle obtained in the second step. The measurement method of the contact angle is performed by using a drop depositing jig consisting of a drop depositing solid body and measuring a contact angle of droplet deposited on the surface of the drop depositing jig.</p> |
