氢化物发生-原子荧光光度法同时测定硫化矿物中的微量砷锑汞

Simultaneous Determination of Trace As, Sb and Hg by HGAFS

为建立氢化物发生-原子荧光光度法同时测定铅锌原矿(主要是硫化物)、铅精矿、锌精矿中的砷、锑、汞含量的方法,探讨了试样的消解、仪器工作参数以及载流量屏蔽气流量KBH4的含量等的优化选择,作了单测与同测以及国家标准物质的对比试验,结果表明,砷、锑、汞的平均回收率分别为92.2%、104.3%、102.6%;RSD(n=6)平均值分别为1.08%、1.2%、3.4%。

To find out the ways of determining the content of As and Sb and Hg and Ge in lead zinc primary mineral, lead concentrate, zinc concentrate with hydride generation- atomic fluorescence spectrometry （HGAFS）, inquired into trying the resolution of samples, instrument work parameter and carry discharge to shield density etc of the amount of current of KBH4 of excellent turn a choice, measure and together measure after list and the contrast of national standard material experiment, give satisfaction as a result. The average value of the rate of recovery was As 92.2% , Sb 104. 3% ; Hg 102.6%. And RSD （n =6） the average value of As, Sb and Hg was 1.08% and 1.2% and 3.4% .