流动注射在线液-液萃取FAAS法测定地表水中痕量铜  

On-Line Determination of Trace Copper in Surface Water by FAAS with Liquid-Liquid Extraction Flow Injection

作　　者：刘汉东[1] 刘琼玉[1] 胡德文 陈恒初 

机构地区：[1]江汉大学城建环保系,武汉市赵家条430019

出　　处：《光谱实验室》2000年第6期690-693,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：研讨了流动注射在线液 -液萃取火焰原子吸收光谱法测定地表水中痕量铜的分析方法。采用 A PDC为螯合剂 ,MIBK在线萃取后注入原子吸收光谱仪测定。其相对标准偏差 (RSD)为 3.5 % ;检出限 (3σ)为9.11× 10 - 2 μg· L- 1 ,加标回收率为 95 %— 10 3%。The on line determination of trace copper in surface water by flame atomic absorption spectrometry with liquid liquid extraction flow injection was studied. Copper was chelated by APDC,the chelate was extracted with MIBK solvent and the extract was then determined by directly spraying (without separation).The results showed the relative standard deviation (RSD) is 3.5%, the detection limit is 9.11×10 -2 μg·L -1 and the recovery is 95%—103%.

关 键 词：流动注射 火焰原子吸收光谱法 铜 地表水 测定 

分 类 号：O661.1[理学—分析化学] O614.121[理学—化学]