A new analytical approach for 226Ra and 228Ra in environmental waters |
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Authors: | T Saito T Ohta Y Koike J Sato |
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Institution: | (1) School of Science and Technology, Meiji University, Tama-ku, Kawasaki, Kanagawa Prefecture, 214-8571, Japan |
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Abstract: | The concentration of Ra isotopes in environmental water can be determined from the amount of Ra isotopes recovered in two successive batch operations a using cation exchange resin. The present analytical method is applicable to 10 liter of sample water having a Ra concentration larger than 10 mBq/l and is also applicable to the ordinary underground water of less than 1 mBq/l by use of 50 liter of sample water. In case where Ra concentration is extremely low, Mn-impregnated acrylic fiber can be used with a larger volume of water sample as an absorbent by soaking it in the water. |
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