Determination of Np-237 by radiochemical neutron activation analysis combined with extraction chromatography.
A procedure for determination of 237Np, 238Pu, 239,240Pu and 241Pu in environmental samples is described. Neptunium-237 is determined using radiochemical neutron activation analysis with pre- and post-irradiation chemistry based on solvent extraction and extraction chromatography. 238Pu, 239,240Pu is determined using alpha spectrometry and 241Pu by liquid scintillation spectrometry. The vertical profiles of 237Np, 238Pu, 239,240Pu in bottom sediments from the Black Sea are presented.
Radiochemistry Division, Chemistry Department, M.V.Lomonosov Moscow State University, Leninskie Gory, Moscow 119992, Russia. stephan@radio.chem.msu.ru
St N
SN
Kalmykov
R A
RA
Aliev
D Yu
DY
Sapozhnikov
Yu A
YA
Sapozhnikov
A M
AM
Afinogenov
D002845:Chromatography / Q000379:methods*; D025924:Chromatography, Supercritical Fluid / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis*; D009405:Neptunium / Q000032:analysis*; D009501:Neutron Activation Analysis / Q000379:methods*; D009792:Oceans and Seas; D011005:Plutonium / Q000032:analysis*; D011874:Radiometry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014875:Water Pollutants, Radioactive / Q000032:analysis*
D014875:Water Pollutants, Radioactive; D011005:Plutonium; D009405:Neptunium