|
|||||
|
|
| 应用激光诱导击穿光谱检测土壤中的铅 | |
| 引用本文： | 李勇,陆继东,林兆祥,谢承利,李捷,李鹏艳. 应用激光诱导击穿光谱检测土壤中的铅[J]. 应用光学, 2008, 29(5): 789-792 |
| 作者姓名： | 李勇 陆继东 林兆祥 谢承利 李捷 李鹏艳 |
| 作者单位： | 1. 华中科技大学,煤燃烧国家重点实验室,湖北,武汉,430074 2. 中南民族大学,电信学院,湖北,武汉,430074 |
| 摘 要： | 应用激光诱导击穿光谱技术对模拟土壤中Pb进行快速定量分析。该模拟土壤由PbCl2，CaCO3，SiO2，KBr化学纯试剂制备而成。通过实验得到信噪比随延时的增大呈先增后减的变化规律。利用实验光谱图建立了Pb含量的定标曲线。定量分析研究得到：该方法用于Pb含量定量分析的平均相对误差为8.33%，最低检测限为89μg/g。实验结果验证了激光诱导击穿光谱技术用于土壤中Pb含量测量的能力。 |
| 关 键 词： | 激光诱导击穿光谱 土壤含铅量 铅含量定量分析 定标曲线 |
| 收稿时间： | 2008-01-23 |
Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy |
|
| LI Yong,LU Ji-dong,LIN Zhao-xiang,XIE Cheng-li,LI Jie,LI Peng-yan. Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy[J]. Journal of Applied Optics, 2008, 29(5): 789-792 | |
| Authors: | LI Yong LU Ji-dong LIN Zhao-xiang XIE Cheng-li LI Jie LI Peng-yan |
| Affiliation: | 1.State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China; 2.College of Electrics and Information Engineering, South Central University for Nationalities, Wuhan 430074, China |
| Abstract: | Fast quantitative analysis of lead in the simulated soil made of chemical reagents (PbCl2,SiO2,CaCO3and KBr)was carried out with the laser-induced breakdown spectroscopy. The result shows that the signal-to-noise ratio increases and then decreases with the time delay. The calibration curves of Pb content were constructed with the spectrogram acquired in experiments. It is found by the investigation that the average relative error of the method for the fast quantitative analysis of lead in soil is 8. 33 % and the minimum detection limit is 89 μg/g. The experimental result proves LIBS is capable of being used in the detection of lead in soil. |
| Keywords: | laser-induced breakdown spectroscopy Pb content in soil quantitative analysis of Pb content calibration curve |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《应用光学》浏览原始摘要信息 | |
| 点击此处可从《应用光学》下载全文 | |