caa a22 4500 465731287 CHVBK 20180323111742.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF02163420 doi (NATIONALLICENCE)springer-10.1007/BF02163420 Microwave oven dissolution of geological samples: Novel application in the determination of natural decay series radionuclides [Elektronische Daten] [W. Alexander, T. Shimmield] A microwave oven was utilised to decompose several geological materials by means of acid digestion. Dissolution was achieved in 5 min and238U,234U,232Th and230Th were all determined on the solutions by radiochemical separation and α-spectrometry. The materials, which include a granite, an arkose, a river sediment and a nearshore marine sediment, display a large range in U and Th contents /Th/U ratio of 0.7 to 7: U content of 12 to 1400 Bq kg−1/ and activity ratios /234U/238U of 0.95 to 1.50/. The data indicate that the microwave oven dissolution method produces data comparable to the traditional /open beaker/ method. Unit costs are, however, significantly reduced. Akadémiai Kiadó, 1990 Alexander W. Scottish Universities Research and Reactor Centre, East Kilbride, G75 0QU, Glasgow, Scotland aut Shimmield T. Scottish Universities Research and Reactor Centre, East Kilbride, G75 0QU, Glasgow, Scotland aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 145/4(1990-07-01), 301-310 0236-5731 145:4<301 1990 145 10967 https://doi.org/10.1007/BF02163420 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02163420 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Alexander W. Scottish Universities Research and Reactor Centre, East Kilbride, G75 0QU, Glasgow, Scotland aut NATIONALLICENCE 700 1- Shimmield T. Scottish Universities Research and Reactor Centre, East Kilbride, G75 0QU, Glasgow, Scotland aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 145/4(1990-07-01), 301-310 0236-5731 145:4<301 1990 145 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer