期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 263, 期 -, 页码 754-760出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2013.10.041
关键词
LIBS; Heavy metals; Soils; Chemometrics
资金
- Korea Ministry of Environment under The GAIA Project [172-091-002, 2013000540003]
- National Research Leading Research Laboratory program
- Korean Government [NRF-2011-0015548]
A laser induced breakdown spectroscopy (LIBS) coupled with the chemometric method was applied to rapidly discriminate between soils contaminated with heavy metals or oils and clean soils. The effects of the water contents and grain sizes of soil samples on LIBS emissions were also investigated. The LIBS emission lines decreased by 59-75% when the water content increased from 1.2% to 7.8%, and soil samples with a grain size of 75 mu m displayed higher LIBS emission lines with lower relative standard deviations than those with a 2 mm grain size. The water content was found to have a more pronounced effect on the LIES emission lines than the grain size. Pelletizing and sieving were conducted for all samples collected from abandoned mining areas and military camp to have similar water contents and grain sizes before being analyzed by the LISS with the chemometric analysis. The data show that three types of soil samples were clearly discerned by using the first three principal components from the spectral data of soil samples. A blind test was conducted with a 100% correction rate for soil samples contaminated with heavy metals and oil residues. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据