应用ICP-MS测定KCl肥料中重金属元素含量  

Application of ICP-MS to Detecting Ten Kinds of Heavy Metals in KCl Fertilizer

作　　者：芮玉奎[1,2,3] 申建波[1,2,3] 张福锁[1,2,3] 严云[1,2,3] 荆晶莹[1,2,3] 孟庆锋[1,2,3] 

机构地区：[1]中国农业大学资源与环境学院,北京100193 [2]农业部植物营养学重点实验室,北京100193 [3]教育部植物-土壤相互作用重点实验室,北京100193

出　　处：《光谱学与光谱分析》2008年第10期2428-2430,共3页Spectroscopy and Spectral Analysis

基　　金：教育部长江学者和创新团队发展计划项目(IRT0511);国家"十一五"科技支撑计划(2006BAD25B02);农业部"948"重大国际合作项目(202003-Z53)资助

摘　　要：肥料是重金属的重要污染源之一,重金属可以通过作物直接进入人类食物链对人体产生危害,研究肥料中重金属含量对于农产品安全溯源意义重大。文章选用北京市场上销售的进口KCl肥料作为实验材料,全面分析了其中的10种重金属元素含量,分别为,Cr0.00,Ni65.54,Cu238.85,As190.60,Cd0.98,Sn14.98,Sb2.97,Hg10.04,Tl1.28,Pb97.42ng·g-1。上述结果表明,KCl肥料中重金属含量普遍比较低,特别是Cr没有检测到,其余四中主要重金属(As,Cd,Hg,Pb)的含量除了As(190.60ng·g-1)以外,也都在100ng·g-1以下,不会对土壤环境造成重大污染,含量最高的重金属是Cu,为238.85ng·g-1。由此看来,KCl肥料与磷肥相比重金属含量较低,对农产品是相对安全的。With the rapid development of society, more and more attention has been focused on environmental safety, especially on the pollutions of heavy metals, pesticides, persistent organic pollutants and deleterious microorganism. Heavy metals are difficult to metabolize in human body are quite harmful, so research on the pollution of heavy metals is increasingly important. There are many pollution sources of heavy metals, including waste residue, waste water and exhaust gas from industry and automobile, and garbage from human life. The contents of 10 kinds of heavy metals （Cr, Ni, Cu, As, Cd, Sn, Sb, Hg, Tl and Pb） in potassium fertilizer （KCD from Russia were analyzed by ICP-MS. The results showed that potassium fertilizer （KCI） contained less heavy metals than organic-inorganic compound fertilizer; the content of heavy metals Cr, Ni, Cu, As, CA, Sn, Sb, Hg, Tl and Pb is 0. 00, 65.54,238.85, 190. 60, 0. 98, 14. 98, 2.97, 10.04, 1.28 and 97.42 ng · g^-1, respectively, which accords with the correlative standards. All the data showed that if potassium fertilizer （KCl） is manufactured through normal channel, the content of heavy metals should he little and safe.

关 键 词：ICP-MS KCl肥料 重金属 环境安全 

分 类 号：O657.3[理学—分析化学]