氢化物发生–原子荧光光谱法同时测定水中砷和锑  

Simultaneous Determination of Arsenic and Antimony in Water by Hydride Generation–Atomic Fluorescence Spectrometry

作　　者：黄选忠[1] 万忠卫[1] 杜宏山[1] 郑丽[1] 

机构地区：[1]湖北省兴山县疾病预防控制中心,湖北兴山443799

出　　处：《化学分析计量》2013年第6期70-73,共4页Chemical Analysis And Meterage

摘　　要：建立在硝酸介质中用氢化物发生-原子荧光光谱法同时测定水中砷和锑的方法。优化了仪器工作条件、酸度、硼氢化钾及还原剂浓度。砷、锑的线性范围为0～10．0μg／L；检出限分别为0．02，0．01μg／L；测定结果的相对标准偏差分别为1．77％～3．72％，2．95％～4．87％（n=6）；加标回收率分别为98％106％，96％105％。该法操作简便，灵敏度高，快速，便于推广，适用于水中砷和锑的同时测定。The method for simultaneous determination of arsenic and antimony in water was established by hydride-generation atomic fluorescence spectrometry in nitric acid medium. Instrument condition, acidity, concentration of potassium borohydride and thiourea-ascorbic acid were selected. The linear relationship of arsenic and antimony was 0-10.0μg/L. The detection limit of arsenic and antimony was 0.02 μg/L and 0.01μg/L, the relative standard deviation of arsenic and antimony determination results was 1.77%-3.72% and 2.95%-4.87%（n=6）, the recovery of standard addition of arsenic and antimony was 98%-106% and 96%-105% respectively. This method has the advantages of simple operation and high sensitivity, it is rapid and easy to spread, which is suitable for simultaneous determination of arsenic and antimony in water.

关 键 词：氢化物发生-原子荧光光谱法 同时测定 砷 锑 水 

分 类 号：O657.3[理学—分析化学]