冷原子吸收与原子荧光法测定 As、Sb、Bi、Hg 的方法研究  

METHOD STUDY OF SEQUENTIAL DETERMINATION FOR As、Sb、Bi、Hg USING COLD ATOMIC ABSORPTION SPECTROMETER AND ATOMIC FLUORESCENCE

作　　者：肖正辉[1,2] 吴晓静[1,2] 李军 程听大[1,2] 

机构地区：[1]安徽省地矿局 [2]合肥工业大学

出　　处：《合肥工业大学学报（自然科学版）》1997年第4期115-119,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：样品经王水分解后，调制成１０％的ＨＣｌ介质。移至自制的Ｈｇ发生器中，加入ＳｎＯ２还原，以空气作载体，将Ｈｇ原子蒸气载入测Ｈｇ仪吸收管，冷原子吸收测Ｈｇ。便可实现一次溶矿与原子荧光连测样品中的微量Ａｓ、Ｓｂ、Ｂｉ、Ｈｇ。检出下限分别为：Ａｓ０．１８μｇ／ｇ；Ｓｂ０．０６７μｇ／ｇ；Ｂｉ０．０８７μｇ／ｇ；Ｈｇ０．０１１μｇ／ｇ。ＲＳＤ％分别为Ａｓ１１％；Ｓｂ６．３％Ｂｉ７．１％；Ｈｇ１．２％。The sample was dissolved by aqua regia, that solution obtainned was controlled to the 10% HCl acid medium,in the mercury generator was added for reduction. Evaporation of merculy carry in absorption tube has carrired gas fo aer.The As,Sb,Bi of Can be appliedd The Cold AAS Sequentinal determination Can method RSD of method is AS:11.0%,Sb:6.3%,Bi:7.1% Hg:1.2% The datection limit for As,Sb,Bi,Hg is μg/g 0.018,0.067,0.086,0.011.

关 键 词：冷原子吸收 原子荧光法 汞 

分 类 号：O614.243[理学—无机化学] O657.31[理学—化学]