Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kaisa Vaaramaa"'
Autor:
Marke Susanna Salminen-Paatero, Veronika Meriläinen, Xiaolin Hou, Maria Kaipiainen, Kaisa Vaaramaa, Patric Lindahl, Satu Rautio, Satu Kangas, Santeri Jortikka, Leena Vasara
Publikováno v:
University of Helsinki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e016f738ef34a67c18873a42922dd8b7
http://hdl.handle.net/10138/329119
http://hdl.handle.net/10138/329119
Autor:
Hannele Hirvonen, Mattias Olsson, Charlotta Askeljung, Miia Lampén, Antti Hatakka, Kaisa Vaaramaa, Olof Gottfridsson, Laura Togneri, Xiaolin Hou, Sofie Englund, Helene Öhlin, Martin Forsström, Falk Anders
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 309:1283-1319
Radiochemical analysis plays a critical role in the determination of pure beta and alpha emitting radionuclides for environmental monitoring, radioecology, decommissioning, nuclear forensics and geological dating. A remarkable development on radioche
Publikováno v:
Applied Geochemistry. 38:1-9
To determine the mobility of natural radionuclides in boreal forest soil, a five-step sequential extraction procedure was carried out on soil samples taken from various depths down to 3 m on Olkiluoto Island, Finland, where there are plans to constru
Publikováno v:
Journal of Environmental Radioactivity. 116:124-132
Profiles of podzolic soil from boreal forests were sampled from eight sites in Finland and the distribution of (137)Cs in the soil layers was determined. In addition, (239,240)Pu and (241)Am were determined from two soil profiles taken at one samplin
Autor:
Kaisa Vaaramaa, Jukka Lehto
Publikováno v:
Desalination. 155:157-170
Five organic and two inorganic ion exchangers were evaluated for the removal of metals and anions from water of two drilled wells. Sodium titanate (CoTreat) and a chelating aminophosphonate resin were the most efficient exchangers in removing transit
Publikováno v:
Journal of Materials Chemistry. 13:535-541
Ion exchange properties of titanium antimonates have been investigated with the main objective being selective removal of radionuclides from acidic nuclear waste solutions and in the presence of strongly interfering calcium. Five samples with Ti∶Sb
Publikováno v:
Radiochimica Acta. 91:21-28
Summary Water of five drilled wells was filtered with three membranes (pore size 0.45 µm-5 kD) to determine the soluble and particle-bound forms of 234,238U, 226Ra and 210Po. Three of the waters were of Ca-HCO3 type and two of Na-Cl type. Some of th
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry.
The seasonal and regional variation of the atmospheric 210Pb deposition in Finland was studied. The 210Pb activity concentration in precipitation shows a decreasing trend from southeastern Finland north-westwards. An average deposition of 40 Bq/m2 du
Publikováno v:
Radiochimica Acta. 88:845-850
Effects of pH in the range of 5 to 8 and uranium concentration in the range of 0.02 mg/l to 25 mg/l on the removal of uranium with a strong base anion exchange resin (SBA) and a chelating aminophosphonate resin were studied. The results of the batch
Publikováno v:
Radiochimica Acta. 88:361-368
Six organic and five inorganic ion exchangers were studied for the removal of natural radionuclides from drinking water. In the first phase, distribution coefficients (KD) of uranium and radium were determined in three model solutions: a good quality