| 王长芹,张凯,邓艺,杜卓群.微波消解-原子吸收光谱法测定土壤中的铅和镉[J].济宁医学院学报,2015,(2):124-125,128 |
| 微波消解-原子吸收光谱法测定土壤中的铅和镉 |
| Determination of Lead and Cadmium in soil using microwave digestion by atomic absorption spectrometry |
| 投稿时间：2015-02-05 |
| DOI：10.3969/j.issn.1000-9760.2015.02.013 |
| 中文关键词: 微波消解;原子吸收光谱法;土壤;铅;镉 |
| 英文关键词: Microwave digestion;Atomic absorption spectrometry;Soil;Lead;Cadmium |
| 基金项目:2013年济宁市科技局医药卫生科技发展项目(编号:2013jnwk70);2013年济宁医学院校级科研计划项目(编号:JY2013KJ029);2012年山东省特色专业"医学检验专业"资助项目(编号:33) |
| 作者 | 单位 | | 王长芹 | 济宁医学院法医学与医学检验学院, 山东济宁 72067 | | 张凯 | 济宁医学院法医学与医学检验学院, 山东济宁 72067 | | 邓艺 | 济宁医学院药学院2010级学生, 山东日照 276826 | | 杜卓群 | 济宁医学院药学院2010级学生, 山东日照 276826 |
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| 中文摘要: |
| 目的 建立微波消解-石墨炉原子吸收光谱法测定土壤中铅和镉含量的方法。方法 利用硝酸-盐酸-氢氟酸作消解液,土壤样品经微波消解,采用石墨炉原子吸收光谱法测定土壤中铅和镉的含量。结果 在优化实验条件下, 铅(2.0~50μg/L)、镉(0.1~1.0μg/L)的吸光度(A)与浓度(C)呈良好的线性关系(r值分别为0.9962,0.9971,),检出限分别为1.48μg/L和0.062μg/L,回收率为92.40%~102.6%, RSD为2.63%~5.62%。结论 该方法样品处理效率高、准确性好,用于土壤中铅和镉的测定,结果令人满意。 |
| 英文摘要: |
| Objective To establish a method for the determination of lead and cadmium in soil using microwave digestion by atomic absorption spectrometry (AAS). Methods Using nitric acid-hydrochloric acid-hydrofluoric acid as remove fluid, soil samples were digested by microwave, then the contents of lead and cadmium in soil were detected by atomic absorption spectrometry (AAS). Results There was a good linear relationship at the concentration of 2.0~50 μg/L for Pb and at 0.1~1.0μg/L for Cd; the correlation coefficient of Pb was 0.9962 and that of Cd was 0.9971.The detection limits of lead and cadmium were 1.48μg/L和0.062μg/L, respectively,and the recovery rates were 92.40%~102.6%, the RSDs were 2.63%~5.62%. Conclusion The method was efficient for sample reatment and accurate. The method was employed for measurement of Pb and Cd in soil, and satisfactory results were obtained. |
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