Sequential radionuclides determination in bones of wild animals

The work was focused on the sequential determination of radionuclides - ⁹⁰Sr, ²¹⁰Pb and ²²⁶Ra in bones of wild animals using the AnaLig(R) Sr-01 Resin. Based on the metabolic similarity of selected radionuclides with calcium, the target matrix was selected - the bones in which the radionuclides are deposited, replaced with calcium, and irradiate the organism for a long time. Chemical yield of lead was monitored by addition of the Pb²⁺ carrier and measured by AAS from PERKIN-ELMER. Radionuclides ⁸⁵Sr and ¹³³Ba were used to determine the radiochemical yields by measurement on the HPGe detector. Firstly, was eluted ²¹⁰Pb with 9 mol · dm^-3 HCl followed by ⁹⁰Sr with Na₂H₂EDTA pH 6 and ²²⁶Ra with Na₂H₂EDTA at pH 9 from AnaLig(R) Sr-01 Resin. The ⁹⁰Sr and ²¹⁰Pb activity masses were determined after the increase in their daughter products: ⁹⁰Sr (⁹⁰Y) and ²¹⁰Pb (²¹⁰Bi) to the TRI CARB 3100 TR. The mass activity of ²²⁶Ra was determined on a 576A Alpha spectrometer with ULTRA^TM Alpha Detector 600. (authors)