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蒸发浓缩γ谱测量珠江广州段水中¹³¹I

Gamma Spectrometry of Vaporization-Concentrated ¹³¹I from Pear River Water

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【Author】 Deng Fei;Chen Wentao;Li Lingjuan;Song Haiqing;Lin Qing;Mo Guanghua;Chen Zhidong;Hu Deqing;Li Jinlin;Guangdong Environment Radiation Monitoring Centre;Guangzhou Environment Monitoring;

【机构】广东省环境辐射监测中心；广州市环境监测站；

【摘要】采用蒸发浓缩γ谱测量的方法分析了珠江水中的131I,实验证实15 L水样于pH值=7、碘载体浓度为0.5mg/L的条件下蒸发浓缩,131I的加标回收率为95%、探测下限为0.004 Bq/L;2011~2013年监测珠江广州段水中131I浓度范围为0.03~0.20 Bq/L。更多还原

【Abstract】 131I was measured by gamma spectrometer for water in Pear River in Guangzhou. 15 L water was vaporized in condition of pH = 7 and 0. 5 mg /L iodine. The recovery rate of131I is 95% and the lower detection limit is 0. 004 Bq /L. The concentration of131I is 0. 03-0. 20 Bq /L during 2011-2013.更多还原