no carrier added

https://doi.org/10.1351/goldbook.N04174
A preparation of a @[email protected] which is essentially free from @[email protected] @[email protected] of the element in question.
Source:
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2522 [Terms] [Paper]