比ひ色しょく分ぶん析せき

noun

colorimetry; colorimetric analysis

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

• 比ひ色しょく分ぶん析せきを用もちいて溶よう液えき中ちゅうの鉄てつの濃のう度どを測そく定ていした。

  We measured the concentration of iron in the solution using colorimetric analysis.