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Standard methods for analysis of phosphorus-32

Journal Article · · Annu. Book ASTM Stand.; (United States)
OSTI ID:7353029

Methods are described for the determination of the radiochemical purity and the absolute disintegration rate of /sup 32/P radioisotope preparations. The /sup 32/P activity is determined by ..beta.. counting, and other low-energy ..beta.. radioactive contaminants are determined by aluminum-absorption curve data. Any ..gamma..-radioactive contaminants are determined by ..gamma.. counting. Routine chemical testing is used to establish the chemical characteristics. The presence or absence of heavy metals is established by spot tests; free acid is determined by use of a pH meter; total solids are determined gravimetrically by evaporation and ignition at a temperature sufficient to evaporate the mineral acids, HCl and HNO/sub 3/; and nonvolatile matter, defined as that material which does not evaporate or ignite at a temperature sufficient to convert C to CO or CO/sub 2/, is determined gravimetrically after such ignition. (BLM)

OSTI ID:
7353029
Journal Information:
Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ASTSA
Country of Publication:
United States
Language:
English