【摘要】 采用王水分解试样 -氢化物发生原子荧光光谱法 (HG -AFS)测定粉煤灰中有害微量元素砷。方法回收率为 98 5 %～ 1 0 2 3 % ,相对标准偏差为 1 9%～ 4 8% ,该法具有快速、简便、灵敏、可测范围宽等优点 ,对探讨粉煤灰在农业土壤改良中的应用具有十分重要的意义更多还原

【Abstract】 The sample was dissolved in aqua vegia,then the content of arsenic was directly determined by HG-AFS.The method is quick,accurate,economical and has wide linearity range.The relative standard deviation was 1.9%～4.8% and the recovery is 98.5%～102.3%.The method has been applied to determination of the fly ash samples with satisfactory results.更多还原