noun
colorimetry; colorimetric analysis
Technical term in chemistry for determining the concentration of a substance by measuring color intensity.
比色分析を用いて溶液中の鉄の濃度を測定した。
We measured the concentration of iron in the solution using colorimetric analysis.
Compound of 比色 (ひしょく, 'color comparison') and 分析 (ぶんせき, 'analysis').