饮用水中总α、总β放射性检测的批量样品浓缩方法优化  

Optimization of Concentration Method for Batch Samples of Totalαand TotalβRadioactivity Detection in Drinking Water

作　　者：姚志扬[1] Yao Zhiyang(Department of Environment Health and Food Safety,Center for Disease Control and Prevention of Lianyungang,Lianyungang 222000,China)

机构地区：[1]连云港市疾病预防控制中心卫生监测科,江苏连云港222000

出　　处：《中国资源综合利用》2020年第10期49-52,共4页China Resources Comprehensive Utilization

摘　　要：本研究结合实际工作中遇到的问题,通过试验方法比较,优化了批量水样中总α、总β放射性检测浓缩方法。其间按照《生活饮用水标准检验方法放射性指标》(GB/T 5750.13—2006)的相关方法进行试验。对于优化后的方法来说,总α的加标回收率为92.6%~105.9%,总β的加标回收率为91.2%~106.8%。研究结果表明,通过对样品残渣量、蒸发耗时和工作强度等方面的比较,加强加标回收的质量控制,饮用水中总α、总β放射性检测的批量样品浓缩方法得到优化。In this study,combined with the problems encountered in actual work,through the comparison of test methods,the method for the detection and concentration of total alpha and total beta radioactivity in batch water samples was optimized.In the meantime,the test was carried out in accordance with the relevant methods of"Standard Inspection Methods for Drinking Water-Radioactivity Index"(GB/T 5750.13—2006).For the optimized method,the standard addition recovery rate of totalαis 92.6%~105.9%,and the standard addition recovery rate of totalβis 91.2%~106.8%.The research results show that by comparing the amount of sample residues,evaporation time and work intensity,the quality control of spiked recovery is strengthened,and the batch sample concentration method for the detection of totalαand totalβradioactivity in drinking water is optimized.

关 键 词：总α、总β放射性物质 残渣量 蒸发耗时 加标回收率 

分 类 号：R123.1[医药卫生—环境卫生学]