Full assistance in radiochemical separations and preparation of generators of less common radionuclides

Includes:

  1. Fast determination of small amounts of radium in environmental samples, including coal-mine brines.
    Method consists in preconcentration of radium ions (226Ra, 228Ra) from large volumes of aqueous solutions using radium-selective ion exchanger, alpha-crystalline manganic acid (cf. J.Narbutt et al, 4th Intern. Conf. on Nuclear and Radiochemistry, Saint Malo, France, 8-13 Sept., 1996, Extended Abstracts, Vol.2, E-P57), followed by gamma spectrometric determination. Over 0.5 Bq of 226Ra per dm3 of saline (e.g. 100 g/dm3) solution can be determined in about 6 hours procedure. The sensitivity for 228Ra is higher, but the results are delayed for a day.
  2. Laboratory generators of gamma emitting radiotracers: 224Ra, 212Pb, 212Bi.
224Ra (ca 0.15 MBq per batch) is extracted from natural thorium solutions and used either as a radiotracer or to prepare ion-exchange column generator of its descendants 212Pb and 212Bi. The radiotracers are obtained with high radionuclide purity and a good yield.

in Polish