Determination of 210Po and 210Pb in hydrometallurgical samples using liquid scintillation counting

Critical comparison of radiometric and mass spectrometric methods for the determination of radionuclides in environmental, biological and nuclear waste samples

“…Solvent extraction, precipitation and ion exchange methods have been used to separate Pb. The separated Pb is kept for 8-9 days for the in-growth of 210 Bi, which is then measured using GM detector or LSC [225][226]. A detection limit of 7 mBq was reported using this method [224].…”

A method for simultaneous determination of210Pb and212Pb in drinking water samples

“…There are five main kinds of method for the measurement of 210 Pb: (1) direct counting of the low-energy (46.5 keV) γ-ray of 210 Pb using γ-spectrometry equipped with Ge(Li) detector [6,7]; (2) separation of 210 Po, being an indirect decay product of 210 Pb, and counting of its α activity by α-spectrometry [8,9]; (3) co-precipitation of 210 Pb with Ba as a sulphate, dissolving the sulphate in EDTA, mixing the obtained solution with the scintillation cocktail and measuring by liquid scintillation counting [10,11]; (4) separation of 210 Bi, the direct progeny of 210 Pb, and counting of its β activity [12], and (5) separation of Pb and counting of the β activity of the in-growing 210 Bi [13][14][15][16]. In the literatures [14,15], the advantages and disadvantages of these methods have been discussed in detail.…”