Izvorni znanstveni članak
Comparison of the distribution of 47Ca, 85Sr, 133Ba and 223Ra following intravenous injection into a helthy man
G.E. Harrison
; Medical Research Council, Radiobiologicai Research. Unit, Harwell, Didcot, Berkshire. England
Sažetak
A healthy 60 year-old man was given 47Ca, 85Sr, 133Ba and 223Ra intravenously so that the metabolism of each nuclide could be compared in the same individual. Serial blood samples were taken for 7 days after each injection and separate collections of urine and faeces continued for over three months. The metabolism of 133Ba and 223Ra was very similar so that Ba may be regarded as a good short-term tracer for Ra. Differences in the metabolism of 47Ca and 85Sr were quite marked. The whole body counting of 85Sr was continued for 1 year and for 133Ba is still continuing. Marked difference in the long-term retention of these nuclides have been observed. Further information has been obtained on the long-term body retention of radon in the same subject following an accidental contamination with 226Ra. From 17 to 27 years after the contamination, the body retention of radon has been shown to be decreasing exponentially with a half-life of about 71/2 years.
Ključne riječi
Hrčak ID:
176022
URI
Datum izdavanja:
12.12.1968.
Posjeta: 785 *