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本文研究了原子荧光光谱法联合测定水样中汞、砷和硒的含量的优化分析方法,实验对比了酸介质、还原剂用量等对测定结果的影响,总结出了简单有效的水样前处理方法和实用的联合测定步骤,该实验步骤具有操作简便、快速、干扰少、灵敏度高等优点,适用于地表水、地下水、饮用水源、海水和污水中的汞、砷和硒元素的联合测定,具有较好的实用性。
In this paper, the optimal analytical method for the determination of mercury, arsenic and selenium in water samples by atomic fluorescence spectrometry was studied. The effects of acid medium and reducing agent on the determination results were compared and the simple and effective water sample pretreatment Method and practical joint determination procedure, which has the advantages of simple operation, fastness, less interference and high sensitivity and is suitable for the joint determination of mercury, arsenic and selenium in surface water, groundwater, drinking water source, seawater and sewage, Has good practicality.