氢化物原子荧光法同时测定海洋沉积物中的痕量As和Hg  

Simultaneous determination of trace arsenic and mercury in marine sediment by atomic fluorescence spectrometry with hydride generation

作　　者：杨颖[1] 程祥圣[1] 秦晓光[1] 张勇[1] 

机构地区：[1]国家海洋局东海环境监测中心,上海200137

出　　处：《海洋环境科学》2006年第4期74-77,共4页Marine Environmental Science

摘　　要：尝试一次消解海洋沉积物样品，用氢化物原子荧光法同时测定As和Hg。试验了KBH4的浓度、共存离子的影响，优化了仪器条件。方法回收率分别为：AS为91．9％-105％、Hg为93．0％-109％，As、Hg的线性范围、检出限分别为0—8μg·L^-1和0-800ng·L^-1．0．06μg·L^-1和2．65μg·L^-1、RSD为4．7％和5．8％。方法具有操作简单、快速、灵敏度高等优点。A method was proposed for the simultaneous determination of trace arsenic end mercury in the marine sediment sample by atomic fluorescence spectrometry with hydride generation. The influence of operation conditions such as KBH4 concentration end coexisting ions were also studied. The recovery, detection limit , liner range end the RSD are 91.9% - 105%, 0.06 μg· L^-1, 0 - 8 μg· L^-1 end 4.7 % for As, and 93.0% - 109%, 2.65 ng· L^-1, 0 - 800 ng· L^-1 end 5.8% for Fig, respectively. The method is simple end rapid with high sensitivity.

关 键 词：原子荧光 海洋沉积物样品 HG AS 

分 类 号：X830.2[环境科学与工程—环境工程] O657.31[理学—分析化学]