江西农业大学学报2016，Vol.38Issue(2)：393-397,5.DOI:10.13836/j.jjau.2016056
含水量对LIBS检测土豆中Pb元素灵敏度的影响
Influence of Water Content on the Detection of Sensitivity of Pb in Potatoes by LIBS
摘要
Abstract
Pollution from heavy metals in agricultural products is becoming more and more serious. It is very necessary to develop a novel technology for rapid detection. Laser Induced Breakdown Spectroscopy ( LIBS) is a new method in analysis of composition,and it can achieve fast and environmentally friendly deter⁃mination . Systematic research is not enough in monitoring farm products by LIBS due to complicate matrix effect of samples.In this work,potatoes polluted in lab were chosen as the target.LIBS spectra of samples with differ⁃ent water contents were collected,and the effect of water on sensitivity of LIBS signal was analysed.The results showed that water plays an important role in sensitivity of LIBS. It is easy to detect the spectroscopy in drier samples.For Pb polluted dry samples,the spectra were gained by LIBS and the content of Pb was acquired by AAS.The linear relationship between LIBS intensity and AAS content was constructed.The results demonstrated that the correlation coefficient was preferable.This work displayed that it is feasible to detect Pb in potato.But about the natural samples with lower content of Pb,it is significant to improve the ability of LIBS in direct anal⁃ysis without any pretreatment.关键词
激光诱导击穿光谱/土豆/铅/含水量/灵敏度Key words
LIBS/potato/Pb/water content/sensitivity分类
信息技术与安全科学引用本文复制引用
王彩虹,黄林,刘木华,杨平,陈添兵,胡慧琴,黎文兵,姚明印..含水量对LIBS检测土豆中Pb元素灵敏度的影响[J].江西农业大学学报,2016,38(2):393-397,5.基金项目
国家自然科学基金（31460419）、江西省重大科技项目（20143ACB21013）、江西省教育厅科技计划（ GJJ10681）、江西省学术带头人计划（09004004）和赣鄱“555”英才项目、大学生创新计划项目（201410410010） Project supported by the National Natural Science Foundation of China （31460419），the Major Project of Science and Technology of Jiangxi Province （20143ACB21013），the Education Department of Science and Technology Plan of Jiangxi Province （GJJ10681），the Academic Leaders of Jiangxi Province （09004004），the “555”Phe-nomenon of Jiangxi Province、College Students’ Innovative Project （）
