【摘要】 提出了电感耦合等离子体原子发射光谱法测定土壤中铀含量的方法。土壤样品称样0.200 0 g,用硝酸6.0 mL、盐酸2.0 mL、氢氟酸2.0 mL于微波消解仪中消解完全。选择波长为385.958 nm的谱线作为铀的分析线。方法的检出限（3σ）为0.15 mg·L^-1。方法用于分析国家标准物质GBW（E）080173,测定值与认定值相符。方法的回收率在92%～106%之间,测定值的相对标准偏差（n=10）为1.0%。更多还原

【Abstract】 A new method for the determination of uranium in soil by ICP-AES was proposed in this paper. The sample（0.200 0 g） was dissolved completely with 6 mL of HNO₃,2.0 mL of HCl and 2.0 mL of HF in a micro-wave digestor.The spectral line of 385.958 nm was selected as analytical line for the determinatioa Value of detection limit（3σ） of the method found was 0.15 mg·L^-1.The proposed method was used in the analysis of a CRM[GBW（E） 080173],giving results in consistency with the reference values.Values of recovery of the method were found in the range of 92%—106%,and RSD（n=10） was 1.0%.更多还原