核电站含硼废液中硼浓度测量方法对比研究

硼作为重要的中子吸收剂大量存在于核电站一回路中，因此在对核电站放射性废液的分析以及模拟研究中经常需要对不同硼浓度样品进行浓度测量。本文对比了4种常用的硼检测方法，分析了各自的优缺点。最终结果显示，国家标准姜黄素法仅适宜检测低浓度硼（＜1.2 mg/L）；甘露醇滴定法仅对高浓度硼（＞1 g/L）的测量有效；甲亚胺-H酸比色法适用硼浓度范围广，精确度高，但操作复杂，样品准备过程中需避光保存；利用电感耦合等离子体发射光谱仪（ICP-OES）测量溶液硼浓度操作简单快捷，适用硼浓度范围大，准确度和精密度能满足检测分析要求。 

Comparison Study of Boron Detection Method in Boron-Containing Wastewater of Nuclear Power Plant

As an important neutron absorber, a large number of boron exist in the first circuit of nuclear power plant. It is necessary to measure the different boron concentration during the study of the Nuclear power plant radioactive waste. In this paper, four kinds of boron detection methods are compared and their advantages and disadvantages are analyzed. The result shows that national standard of curcumin method is only suitable for detecting low concentrations of boron (<1.2 mg/L); Mannitol titration method is only effective for high concentrations of boron (>1 g/L); Azomethine-H acid colorimetric method is suitable for a wide range of boron concentration and has a high accuracy, but the operation is complicated and the developer need to be kept away from light. The operation of using ICP-OES detecting boron concentration is simple and quick, which is suitable for a wide range of boron concentration. The accuracy and precision can meet the testing and analysis requirements.