摘要
采用HNO3-HCl-HF-HClO4体系在全自动消解仪消解土壤样品,以50.0μg/L的Rh作内标,用电感耦合等离子体-质谱仪同时测定《土壤环境质量标准》的7种元素Cd、As、Cu、Pb、Cr、Zn、Ni。结果表明,土壤标样的测定值与标准值吻合,各元素对应的检出限和相对标准偏差分别为:Cd:0.002 mg/kg和3.6%,As:0.05 mg/kg和5.5%,Cu:0.10 mg/kg和2.9%,Pb:0.18 mg/kg和4.7%,Cr:0.25 mg/kg和2.2%,Zn:0.40 mg/kg和3.4%,Ni:0.20 mg/kg和3.8%。该方法简便快捷,灵敏度高,重现性好。
The mixtur e of HNO3-HCl-HF-HClO4 was used to digest soil by Auto Sample Dig-estion （ ASD）, and the seven mental elements of Environmental Quality Standard for Soils were analyzed by Inductively Coupled Plasma-Mass spectrometer （ ICP-MS） with internal standard rhodium of 50.0 μg/L. The results are in agreement with the certified values. The detection limit and the relative standard deviation are as follows-Cd： 0.002 mg/kg and 3.6%, As： 0.05 mg/kg and 5.5%, Cu： 0.10 mg/kg and 2.9%, Pb： 0.18 mg/kg and 4.7%, Cr： 0.25 mg/kg and 2.2%, Zn： 0.40 mg/kg and 3.4%, Ni： 0.20 mg/kg and 3.8%. The method was rapid, simple, with high sensitivity and good precision and accuracy.
出处
《中国环境管理干部学院学报》
CAS
2014年第1期53-56,共4页
Journal of Environmental Management College of China
基金
国家重大科学仪器设备开发专项<基于质谱技术的全组分痕量重金属分析仪器开发和应用示范>(2011YQ060100)
济源市科技攻关项目<电感耦合等离子体光谱及质谱分析技术在土壤重金属元素分析中的应用研究>(13023040)
