比ひ色しょく定てい量りょう

noun

colorimetry; colorimetric analysis

Technical term in analytical chemistry for determining the concentration of a substance by measuring color intensity.

• この実じっ験けんでは比ひ色しょく定てい量りょうを用もちいて鉄てつの濃のう度どを測そく定ていした。

  In this experiment, we measured the iron concentration using colorimetry.