原子荧光光度法测定地表水中的痕量汞  

Determination of trace mercury in surface water by atomic fluorescence spectrometry

作　　者：潘腊青[1] 章维维[1] 池怡[1] 周姗[1] 

机构地区：[1]杭州市环境监测中心站,杭州310007

出　　处：《分析仪器》2013年第5期11-14,共4页Analytical Instrumentation

摘　　要：以硫酸一高锰酸钾加热消解水样，低浓度硼氢化钾作为还原剂，运用AFS-9230双道原子荧光光度计，采用顺序注射一冷蒸气发生一原子荧光光谱法，测定地表水中的痕量汞。检出限为0．012μg／L，回收率为90％～110％，RSD小于10．0％，该法具有灵敏度高，精密度好，干扰少和操作简单方便等优点，同时对方法的质量控制进行了探讨。Heating and digestion of water samples by sulfuric acid and potassium permanganate, low concentration potassium borohydride as the reducing agent, using AFS-9230 double-channel atomic fluo- rescence spectrometry, determination of trace mercury in surface water with sequential injection-cold vapor generation-atomic fluorescence spectrometry was carried out. The detection limit is 0. 012μg/L, the rate of recovery is 90%-110% ,RSD〈10.0%. The advantages of the method are of high sensitivity, good preci- sion, less interference, simple and convenient operation. At the same time, the aspect of quality control was discussed.

关 键 词：汞 地表水 原子荧光光度计 

分 类 号：O657.3[理学—分析化学] X832[理学—化学]