specific activity, \(a\)

in radiochemistry
For a specified @I03331@, or mixture of @I03331@, the @A00114@ of a material divided by the mass of the material.
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2515 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 993 [Terms] [Paper]