塞曼效应石墨炉原子吸收法测定饮用水中痕量铅  

The Determination of Trace Lead in Drinking Water by Zeeman Effect of GFAAS Method.

作　　者：马毅红[1] 

机构地区：[1]惠州学院理工学院,广东惠州516015

出　　处：《惠州学院学报》2002年第3期29-32,共4页Journal of Huizhou University

摘　　要：本文探讨了用塞曼效应石墨炉原子吸收法测定饮用水中痕量铅 ,研究了石墨炉升温程序及基体改进剂对测定的影响。测定结果表明 ,采用塞曼扣背景的方法 ,以硝酸为基体改进剂 ,使水样中基体干扰大大减少 ,回收率达到 97%以上 。The paper discussed the determination of trace lead in drinking water by the adoption of Zeeman effect of graphite furnace atomic absorption method,and studied the temperature raising procedure of graphite furnace as well as the effects of matrix modifier on the determination.The measurement results shows that the application of Zeeman background absorption method and the use of HNO 3 as matrix modifier can greatly reduce the matrix disturbance in the water sample,obtaining over 97% of the rate of recovery,thus satisfactory determination results are achieved.

关 键 词：塞曼效应 石墨炉原子吸收法 饮用水 铅 

分 类 号：O661.1[理学—分析化学] X832[理学—化学]