Suppose we have 10 L of sea water sample and we want to determine the activity of gamma emitting radionuclides in it. Is it required to concentrate this sample prior to gamma spectrometry analysis or we can use a portion (e.g. .5 or 1 L) of the sample directly?
Please Ref : B Salbu, E Steinnes, AC pappas - Analytical Chemistry 1975. ACS publications.
That depends on a) the desired level of detection, and b) the detection limit of the instrument. There is no general answer to this question, sorry.
Hello,
For natural radionuclides you can have a look to :
van der Loeff, M. R., & Moore, W. S. (1999). The analysis of natural radionuclides in seawater. In Methods of Seawater Analysis (pp. 365-397). Verlag Chemie Weinheim.
availble online at:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=2ahUKEwintMfQl7zlAhVKTBoKHYXjDmEQFjABegQIBhAC&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.566.2222%26rep%3Drep1%26type%3Dpdf&usg=AOvVaw3Bk2j2YlA7Yzf3xIQwvFtq
Best regards.
Matthieu
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