| ICP-MS测定无公害农产品土壤样中的铅·镉 |
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| 引用本文： | 陈虹,张素珍,吴小均. ICP-MS测定无公害农产品土壤样中的铅·镉[J]. 安徽农业科学, 2010, 38(23): 12509-12509,12513 |
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| 作者姓名： | 陈虹 张素珍 吴小均 |
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| 作者单位： | 1. 青海省地质矿产测试应用中心,青海西宁,810008
2. 四川省地质矿产勘查开发局化探队,四川德阳,618000 |
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| 摘 要： | [目的]简便快速测定无公害农产品土壤样中铅（Pb）、镉（Cd）的含量。[方法]采用湿法消解样品,在硝酸介质中用电感耦合等离子体质谱仪（ICP-MS）测定Pb、Cd的含量。[结果]在最佳测定条件下,Pb、Cd的质量分数分别在1.70～1000.00mg/kg、0.05～100.00mg/kg范围内呈线性关系。相对标准偏差分别小于3.4%和5.2%。[结论]该法具有简便快速、检出限低等特点,可满足土壤样中Pb、Cd的测定。
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| 关 键 词： | 电感耦合等离子体质谱 无公害农产品土壤 铅 镉 |
ICP-MS Determination of Lead and Cadmium in Pollution-free Agricultural Soil Samples |
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| Affiliation: | CHEN Hong et al (Rock and Mineral Test Application Research institute of Qinghai,Xining,Qinghai 810008) |
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| Abstract: | [Objective] The aim was to determine the trace lead and cadmium in pollution-free agricultural soil samples rapidly and easily. [Method] A method for determination of trace lead and cadmium in pollution-free agricultural soil samples by inductively coupled plasma mass spectrometry (ICP-MS) using wet digestion were developed. [Result] Under the optimum conditions the detection limit were Pb 1.70-1 000.00 mg /kg and Cd 0.05-100.00 mg /kg respectively. The relative standard deviation was less than 3.4% and 5.2%(n=12)respectively. [Conclusion ]The method was simple,low detection limits,so it can be successfully used for the determination of trace lead and cadmium in pollution-free agricultural soil samples. |
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| Keywords: | ICP-MS Pollution-free agricultural soil samples Lead Cadmium |
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