RADIOSTRONTIUM ANALYSES OF BRAZILIAN STILLBORN BONES

Technical Report · Sat Oct 31 04:00:00 EST 1959

OSTI ID:4261163

Penna-Franca, E; Coelho, A P

A series of analyses was made for strontium-90 content of bones from new- born and still-born children from many hospitals of Rio de Janeiro. The analytical method employed consists of separating Sr from Ca by the difference in the solubilities of their nitrates in a 70% nitric acid solution. Radium, a possible contaminating agent, was precipitated from the strontium nitrate salt as barium chromate. The purified Srcontaining soiution was kept in deposit for a minimum of two weeks in order that the Sr/sup 90/-Y/sup 90/ secular equilibrium be attained. The Y/sup 90/ that grew in the stock solutium was separated as an oxalate, set up, and counted in a Geiger-Mueller counter with low and stable background. Results are expressed in sunshine units. Data are tabulated. (C.H.)

• Research Organization: Univ. of Brazil, Rio de Janeiro
• NSA Number: NSA-13-006702
• OSTI ID: 4261163
• Report Number(s): A/CONF.15/P/2269
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BACKGROUND
BARIUM COMPOUNDS
BODY
BONES
CALCIUM
CHROMIUM OXIDES
CONTAMINATION
GEIGER-MUELLER COUNTERS
HEALTH AND SAFETY
MAN
NITRATES
NITRIC ACID
OXALATES
PRECIPITATION
QUALITATIVE ANALYSIS
RADIUM
SEPARATION PROCESSES
SOLUBILITY
STRONTIUM 90
YTTRIUM 90