noun
sampling method; sampling
Used in statistics, surveys, and research for selecting a subset from a population. Often synonymous with サンプリング.
See also: サンプリング
この調査では無作為抽出法を用いた。
This survey used a random sampling method.
noun
extraction method
Technical term in chemistry and related fields for separating a substance from a mixture.
溶媒抽出法は化学分析でよく使われる。
Solvent extraction methods are often used in chemical analysis.
抽出 is the act of extracting or sampling; 抽出法 adds 法 (method) to emphasize the systematic technique.
Compound of 抽出 (extraction/sampling) and 法 (method).