居住区大气中铍的桑色素荧光分光光度法检验方法的改良  

IMPROVEMENT ON MORIN FLUORESCENCE SPECTROPHOTOMETRIC METHOD OF BERYLLIUM IN AIR OF RESIDENTIAL AREAS

作　　者：周定友[1] 冯子男[1] 彭玉秀[1] 胡梅[1] 刘兆霖 刘天洁 王晓燕[3] 魏毅[3] 李平[1] 

机构地区：[1]四川省疾病预防控制中心理化所,成都610041 [2]自贡市疾病预防控制中心 [3]宜宾市疾病预防控制中心

出　　处：《现代预防医学》2012年第2期390-391,393,共3页Modern Preventive Medicine

摘　　要：[目的]对居住区大气中铍的卫生检验标准方法-桑色素荧光分光光度法进行优化改良。[方法]按照国家环境污染物监测方法标准制修订技术导则,对我国现行的居住区大气中铍的卫生检验标准方法-桑色素荧光分光光度法进行了优化改良,并对改良后的方法进行方法学评价。[结果]方法的检出限为0.05ng/ml,测定下限为0.2ng/ml,测量范围为0.0002～0.005μg/ml,对空气中铍的测定范围为0.002～0.05μg/m3(采样体积为1m3)。相对标准偏差分别为2.5%～4.2%(n=6)。回收率为98.0～106.0%。[结论]改良后的方法比原标准方法更加简便易操作,提高了方法灵敏度、测定的精密度和准确度。[Objective]To improve the hygenic detecting method for the beryllium in air of residential areas.[Methods]According to the Technical Guidelines for Development and Revision of National Environmental Monitoring Methods and Standards,the current hygienic detecting method for the beryllium in air of residential areas was optimized and evaluate.[Results]The detection limit of improved method was 0.05ng/ml,and the limit of determination was 0.2ng/ml.The linear range was 0.000 2-0.005μg/ml.For 1 m3 air,the determination range was 0.002-0.05μg/m3.The relative standard deviations were 2.5%-4.2%（n=6）.The recoveries were from 98.0% to 106.0%.[Conclusion]The improved method is easier with better sensitivity,accuracy and precision.

关 键 词：大气 铍 桑色素 荧光分光光度法 

分 类 号：R115[医药卫生—公共卫生与预防医学]