| 亚铁氰化铜-硅胶现场浓集γ能谱法测定海水中137Cs |
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| 引用本文： | 秦学祥,陈懋,邹本川,张振生.亚铁氰化铜-硅胶现场浓集γ能谱法测定海水中137Cs[J].海洋与湖沼,1992,23(4):421-426. |
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| 作者姓名： | 秦学祥 陈懋 邹本川 张振生 |
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| 作者单位： | 国家海洋局第一海洋研究所，国家海洋局第一海洋研究所，国家海洋局第一海洋研究所，国家海洋局第一海洋研究所 青岛 266003，青岛 266003，青岛 266003，青岛 266003 |
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| 摘 要： | 本文介绍用无机离子吸附剂CuFC-SiO_2从海水中浓集~(137)Cs,然后用r能谱仪测定海水中~(137)Cs活度的简易分析测定方法。研究了过柱海水速度和海水中~(137)Cs活度变化时吸附剂对海水中~(137)Cs吸附效率的影响,探讨最佳过柱速度和吸附效率。本方法与磷钼酸铵-碘铋酸铯-β计数法有良好可比性。方法准确,简便,安全且易于掌握。
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| 关 键 词： | 铯同位素 亚铁氰化铜 硅胶 海水 |
CONCENTRATING IN SITU BY COPPER FERROCYANIDE-SILICON DIOXIDE AND MEASURING OF 137Cs IN SEAWATER USING GAMMA-SPECTROMETRY |
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| Qin Xuexiang,Chen Mao,Zou Benchuan Zhang Zhensheng.CONCENTRATING IN SITU BY COPPER FERROCYANIDE-SILICON DIOXIDE AND MEASURING OF 137Cs IN SEAWATER USING GAMMA-SPECTROMETRY[J].Oceanologia Et Limnologia Sinica,1992,23(4):421-426. |
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| Authors: | Qin Xuexiang Chen Mao Zou Benchuan Zhang Zhensheng |
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| Abstract: | In this paper a convenient method for analyzing and measuring the activity of 137Cs in sea-water is described. First, using inorganic ionic exchanger CuFC-SiO2 to concentrate 137Cs from seawater, then measuring the activity of 137Cs directly using gamma spectrometry. Analysis and discussion of the effect of the column passing speed and the fluctuation of the activity of 137Cs in seawater on the adsorption efficiency of 137Cs are put forward. And a method for deciding the optimum column passing speed and adsorption efficiency is suggested. The comparison of the results of this method to that of ammonium phosphomolybdate (AMP)-Cesium-Iodibismu-thate-Beta counting method shows that these two analytical methods are rather comparable. The method suggested in this paper has the advantage of accuracy, convenience, safe and easy operation. |
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| Keywords: | CuFC-SiO2 137Cs Gamma spectrometry |
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