Other radionuclides in water General analytical information

4 Other radionuclides in water (General analytical information) 

Some information on the chemical separation of other fission radionuclides is given below. 

Iodine 131 Following oxidation using nitrite ions, iodine 131 can be 

Caesium 137 with barium 137m Following the addition of inactive caesium as isotopic carrier or of potassium as non-isotopic carrier, caesium can be 

It is also possible to precipitate the barium with an inactive barium carrier as barium sulphate or barium chloride and to measure the drop in its activity. The separation of caesium and barium is also possible by means of cation exchangers and using fractionated elution. Evaluation on the basis of a spectrum is another possibility. 

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