在化探工作中汞、砷、锑、铋均属非常重要的指示元素,在地壳中平均含量很低,一般化学分析方法难以测定。 在分析Hg、As、Sb、Bi时氢化物发生技术配合无色散原子荧光仪器有很低的检出限,通常可达10~(-9)—10~(-11)g,对于接近或低于地质背景的元素含量均能明显检出,且线性范围可达3—4个数量级,故能很好地满足 Mercury, arsenic, antimony and bismuth are all important indicator elements in geochemical exploration work. The average content of mercury in the earth’s crust is very low, and the general chemical analysis methods are difficult to measure. In the analysis of Hg, As, Sb, Bi hydride generation technology with non-dispersive atomic fluorescence instrument has a very low detection limit, usually up to 10 ~ (-9) -10 ~ (-11) g, for nearly or low In the geological background of the element content can be clearly detected, and the linear range of up to 3-4 orders of magnitude, it can well meet