Determination of sodium and chlorine in pure water by neutron activation analysis |
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Authors: | H Higuchi N Nonaka H Hamaguchi K Tomura |
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Institution: | (1) Japan Chemical Analysis Center, Itabashi, Tokyo, Japan;(2) Institute for Atomic Energy, Rikkyo University, Yokosuka, Japan |
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Abstract: | Neutron activation analysis was applied to determine sodium and chlorine in high purity water samples. After irradiation of
the sample,38Cl was purified from82Br and other nuclides by carbon tetrachloride extraction and silver chloride precipitation, and24Na was separated from other alkali elements and other nuclides by adsorption of24Na on HAP. The activities of both elements were measured by conventional G.M. counter. The contamination of the elements from
container walls during neutron irradiation and the interference with38Ar(n, p)38Cl reaction on argon dissolved in water were also examined. Water samples containing 3 ppb of chlorine could not be determined
accurately, owing to the above mentioned interfering reaction. |
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