摘要
用火焰原子吸收光谱法测定了苏州开发区26种蔬菜中的铜、锌、铁、锰和镍的含量。蔬菜样品用硝酸高氯酸混合酸进行消解。4次测定值的相对标准差<5%,加标回收率在92%～107%之间。26种蔬菜中铜、锌、铁、锰、镍的含量基本均在世贸组织规定的范围内。
To detect the concentration of Cu, Zn, Fe, Mn and Ni in twenty six kinds of vegetable in Suzhou Development District by flame AAS. The vegetable sample were digested by HNO3 and HCO4. The relative standard deviation of four detection's results was less 5%, sampling recovery rate was 92%～107%. The content of Cu, Zn,Fe, Mn and Ni in twenty six kinds of vegetable were all under the restricting value stipulated by WTO.
出处
《环境监测管理与技术》
2004年第2期28-29,共2页
The Administration and Technique of Environmental Monitoring
