Determination of 137Cs in large volume seawater using Cu-hexacyanoferrate cartridge filters

International Nuclear Science and Technology Conference 2016

Visetpotjanakit, S.^1 ; Tumnoi, Y.^1

Bureau of Technical Support for Safety Regulation, Office of Atoms for Peace, 16 Vibhavadi rangsit road, Ladyao Chatuchak, Bangkok

10900, Thailand^1

关键词: Cartridge filters;    Hexacyanoferrates;    IS costs;    Large volumes;    Pre-concentration;    SIMPLE method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/860/1/012011/pdf
DOI  :  10.1088/1742-6596/860/1/012011

来源: IOP

【 摘 要 】

A simple method to determine137Cs in seawater has been developed based on the use of a Cu-hexacyanoferrate scavenger. The Cu-hexacyanoferrate supported on cotton wound cartridge filter was used to absorb137Cs from seawater by passing large volumes over the cartridge filters with flowrate of 240 L hr-1. Results from the Cu-hexacyanoferrate method were proved acceptable for accuracy with bias below ± 20 % i.e. - 9.16 to + 18.55 % when compared with the traditional ammonium molybdophosphate pre-concentration method. This developed method is cost-effective and less time consuming. In addition it can be easily performed at sampling fields.