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Sample Type





Radioisotopes 210Po, 210Pb
Detection by alpha

This method specifies the minimum requirements and laboratory methods for the analysis of total 210Pb and 210Po in seawater samples and involves a coprecipitation of Co(NO3)2 and APDC which is filtered, purified and plated for alpha counting.

Samples are collected in acid-cleaned containers and pretreated on board, by acidifying and co- precipitating the samples. Post processing will take place at the home laboratory by auto- plating of Po isotopes onto silver disks on a 1 M HCl solution. Po isotopes emissions are finally measured by alpha spectrometry. Isotope ingrowth and decay corrections are applied to calculate the 210Pb activities

Source A. Fleer and M. Bacon
View Recipe (pdf)