D. Desideri et al., DETERMINATION OF PB-210 IN SEDIMENTS BY EXTRACTION CHROMATOGRAPHY, Journal of radioanalytical and nuclear chemistry, 200(5), 1995, pp. 385-396
A selective method is described for the determination of Pb-210 in sed
iments, based on the separation of the daughter Bi-210 by extraction c
hromatography with Microthene 710-tri-n-octylphosphine oxide (TOPO) an
d on a final source counting with a low background beta-counter. The a
verage chemical yield is 92.0%. The detection limit for 2 g samples is
19 Bq kg(-1) An IAEA reference sediment sample was analyzed to check
the reliability of the method.