原子荧光法测定烟草样品中砷和汞的方法研究  

Study on the Determination of Arsenic and Mercury in Tobacco by Atomic Fluorescence Spectrometry

作　　者：贺兵[1] 陈章玉[1] 王璐[1] 苏钟璧 张承明[1] 陈永宽[1] 

机构地区：[1]云南省烟草化学重点实验室云南烟草科学研究院,云南昆明650106

出　　处：《河北农业科学》2010年第4期154-155,共2页Journal of Hebei Agricultural Sciences

摘　　要：研究了用原子荧光法测定烟草中砷和汞的方法。烟草样品用硝酸-高氯酸消化,然后用原子荧光法测定,方法检出限为砷0.05 ng/mL、汞0.008 ng/mL,相对标准偏差为砷2.6%、汞2.7%。样品加标回收率为砷96%-103%、汞94%-102%,结果令人满意。The determination of arsenic and mercury in tobacco by atomic fluorescence spectrometry was studied.The tobacco samples were digested with HNO3-HClO4,then the arsenic and mercury were determined by atomic fluorescence spectrometry.The detection limits of arsenic and mercury were 0.05 ng/mL and 0.008 ng/mL,respectively.The relative standard deviation of arsenic and mercury were 2.6% and 2.7%,respectively.The recovery of standard addition of arsenic and mercury were 96%-103% and 94%-102%,respectively.

关 键 词：烟草 湿法消解 原子荧光 砷 汞 

分 类 号：TS411[农业科学—烟草工业]