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|
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