5Martinez-Ruiz F. An efficiency calibration for ^210pb and 7Be measurements by gamma-ray spectrometry in atmospheric filters[J]. Nuclear Instruments and Methods in Physics Research, 2007, A580:663-666.
7Biggin C D. Time- efficient method for the determination of ^210pb, ^210Bi, and ^210Po activities in seawater using liquid scintillation spectrometry[J]. Analytical Chemistry, 2002, 74:671-677.
8Vasile M, Benedik L. On the determination of ^228Ra, ^210Po ^234U and ^238U in mineral waters[R]. JRC EUR 23683 EN-2008.
9Russell H A. Scavenging of particulate and dissolved lead compounds by coprecipitation with manganese oxyhydroxides[EB/OL], http://scholar.lib.vt.edu/theses/ available/etd-41398-15446/unrestricted/rha.pdf, 2013.
