specific activity

"Specific activity" is a term used in both physics and biochemistry to quantify activity per unit mass or concentration.

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Definition

C1Physics

(technical)The number of radioactive decays per unit time per unit mass of a radionuclide.

Example

  • The specific activity of the sample was measured in becquerels per kilogram.

C1Biochemistry

(technical)The enzyme activity per unit of protein, indicating the enzyme's purity in a mixture.

Example

  • Scientists determined the specific activity of the enzyme to assess its purity.

Similar

Terms that have similar or relatively close meanings to "specific activity":

catalytic activityactive material