摘要
目的建立双道原子荧光光度计同时测定饮用水中砷和锑的方法,以提高工作效率。方法选择最佳的仪器条件,进行样品处理方法及酸度、硼氢化钾浓度、检出限、线性范围、精密度、加标回收率等研究。结果该方法线性关系:砷为0～80μg/L,锑为0～40μg/L。检出限:砷为0.087μg/L,锑为0.19μg/L。相对标准偏差:砷为1.93%～2.55%;锑为1.97%～3.02%。平均加标回收率:砷为95.7%;锑为96.5%。结论该方法操作简便,灵敏度高,快速,便于推广,适用于水中砷和锑的同时测定。
[Objective]To establish the method for simultaneous determination of arsenic and antimony in drinking water by double channel atomic fluorescence spectrometer,improve work efficiency.[Methods]Choosing optimal instrument condition,the sample treatment method,acidity,concentration of potassium borohydride,detection limit,linear range,precision and the recovery of standard addition were studied.[Results]The linear relationship of arsenic and antimony was 0-80 μg/L and 0-40 μg/L respectively.The detection limit of arsenic and antimony was 0.087 μg/L and 0.19 μg/L respectively.The relative standard deviation of arsenic and antimony was 1.93%-2.55% and 1.97%-3.02% respectively.The average recovery of standard addition of arsenic and antimony was 95.7% and 96.5% respectively.[Conclusion]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.
出处
《职业与健康》
CAS
2012年第19期2354-2355,共2页
Occupation and Health
关键词
原子荧光光谱法
砷
锑
饮用水
Atomic fluorescence spectrometry
Arsenic
Antimony
Drinking water
