拉曼光谱测定水溶液中磷酸二丁酯浓度  

The Determination of Dibutyl Phosphate in Aqueous Solution Using Raman Spectroscopy

作　　者：楚肇雄 Chu Zhaoxiong(China Institute of Atomic Energy,Radiochemi stry Department,Beijing 102400,China)

机构地区：[1]中国原子能科学研究院,放射化学研究所,北京102400

出　　处：《广东化工》2022年第7期195-196,194,共3页Guangdong Chemical Industry

摘　　要：本工作使用拉曼光谱对水溶液中磷酸二丁酯浓度进行了定量分析研究。通过比较纯水和磷酸二丁酯溶液拉曼谱图的区别确定了磷酸二丁酯拉曼特征峰,以水作为定量分析参比物,将不同浓度磷酸二丁酯溶液中水的拉曼峰强度进行归一化处理。通过分析归一化处理后磷酸二丁酯拉曼强度随浓度的变化规律,确定二者之间存在线性关系,建立了一种利用拉曼光谱定量测定水溶液中磷酸二丁酯浓度的方法。A quantitative analysis research of dibutyl phosphate in aquaeous solution was investigated in this work. The characteristic Raman peak of dibutyl phosphate was determined by the difference of Raman spectrums of pure water and dibutyl phosphate solution. The Raman intensity of dibutyl phosphate characteristic Raman peak of different concentrations was normalized, in which the water was used as the reference of quantitative analysis. It is found that the Raman intensity of dibutyl phosphate has a linear relationship with its concentration by analyzing the change of normalized Raman intensity of dibutyl phosphate with concentration. A method of determining the concentration of dibutyl phosphate in aquaeous solution was established using Raman spectroscopy.

关 键 词：PUREX流程 乏燃料后处理 磷酸三丁酯 磷酸二丁酯 拉曼光谱 内标法 

分 类 号：TL24[核科学技术—核燃料循环与材料] O657.37[理学—分析化学]