以冷原子吸收法测定重晶石中汞。试样用硝酸-高氯酸溶解，选择二氯化锡还原化合汞为原子汞进行测定，方法的相对标准偏差＜5％，加标回收率在92％～107％之间。
A method for the determination of mercury in barite by cold vapour atomic absorption spectrometry is reported in this paper. The sample is dissolved by HNO3-HClO4 and the content of mercury is determined by atomic absorption spectrometry. The RSD is less than 5%, and the recovery is within 92%-107%. The method is proved to be precise and convenient.
参考文献
| [1] | 黄世方 .[J].光谱实验室,1993,10(02):11. |
| [2] | 孙龄高.冷原子吸收法测定合质金中的汞[J].分析试验室,1993(03):58. |
| [3] | 浮田忠之进;山城岩;黄致远;杨印民.汞的分析方法[M].北京:原子能出版社,1979 |
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