拉曼光谱法直接测定模拟高放废液中硫酸根  

Direct Determination of Sulfate in Simulated High Level Liquid Waste by Raman Spectroscopy

作　　者：邵少雄[1] 朱海巧[1] 张倩慈[1] 吴继宗[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2015年第2期94-98,共5页Journal of Nuclear and Radiochemistry

摘　　要：对影响拉曼光谱测量硫酸根的主要因素,如积分时间、叠加次数、激光功率等进行了研究,确定了最佳测量条件,建立了拉曼光谱测量模拟高放废液中硫酸根的分析方法。该方法利用拉曼光谱仪测定硫酸根与水拉曼峰的相对强度,从而得到硫酸根含量。结果表明：硫酸根质量浓度线性范围为1~15g/L,线性相关系数为0.999 6,相对误差小于±5%,检测限为0.05g/L。此方法简单、快速、无需消耗任何试剂,有望用于某高放废液样品中硫酸根的检测。Various factors possibly influencing the measurement of sulfate in simulated high level liquid waste（HLLW）by Raman spectroscopy were studied,such as integration time,duplicate folds,laser power and so on,and then the optimum conditions for the determination of sulfate were obtained.A method for determination of sulfate in simulated HLLW by Raman spectroscopy was described.The concentration of sulfate could be determined based on detecting the relative intensity between sulfate and water.The measurement range of sulfate concentration is within 1-15g/L,the linear correlation coefficient ris 0.999 6,the relative error is less than±5%,and the detection limit is 0.05g/L.While the method is simple and rapid,it does not need much chemical reagents.Thus,it could be used for detecting sulfate in HLLW.

关 键 词：拉曼光谱 硫酸根 高放废液 直接测定 

分 类 号：O657.37[理学—分析化学]