奶粉中痕量汞的FI-AAS测定  

Determination of Mercury in Powdered Milk by FI-AAS

作　　者：邓世林[1] 邹爱兰[2] 等 

机构地区：[1]中南大学湘雅医学院分析测试中心410078 [2]中南大学矿物工程系，长沙市410083

出　　处：《光谱实验室》2003年第1期77-80,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：探讨了流动注射－原子吸收光谱法（FI－AAS）测定痕量汞的分析条件，建立了奶粉中痕量汞的FI－AAS测定方法。测定奶粉中汞的检出限为2．4ng·g^-1；线性范围0－80μg·L^-1；相对标准偏差小于5％；加标回收率为95％－108％。该方法简便、快速。Various testing conditions for determination of mercury by flow injection-atomic absorption spectrometry were discussed and a method for the determination of mercury in powdered milk was developed.The linear range for mercury is 0-80μg·L -1.The detection limit for mercury in powdered milk is 2.4ng·g -1.The relative standard deviation is less than 5% and the recovery is in the range of 95%-108%.This method is simple,rapid and can be applied to the determination of mercury in powdered milk samples with satisfactory results.

关 键 词：奶粉 汞 流动注射-原子吸收光谱法 

分 类 号：R155.5[医药卫生—营养与食品卫生学] O657.31[医药卫生—公共卫生与预防医学]