光谱学与光谱分析 |
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Feasibility of Using Laser-Induced Fluorescence to Detect Directly Polycyclic Aromatic Hydrocarbons in Soil |
YANG Ren-jie1, SHANG Li-ping2, BAO Zhen-bo1, HE Jun2, DENG Hu2, LIU Yu-le1 |
1. Department of Electromechanical Engineering, Tianjin Agricultural University, Tianjin 300384, China 2. College of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China |
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Abstract In the present paper, a technique of laser-induced fluorescence(LIF)for direct assay of polycyclic aromatic hydrocarbons(PAH) in soil was put forward. The research objective of this article is anthracene. The possibility of using LIF spectra to detect directly anthracene in soil was studied. Anthracene was detected in soil by AvaSpec-3648 Fiber Optic Spectrometer of thermoelectric refrigeration. The authors drew a conclusion that in the range of certain anthracene concentration(0.000 005~0.001 g·g-1), the intensity of LIF fluorescence is linear with anthracene concentration in soil, with a regression coefficient of 0.929. This showed that direct assay of anthracene in soil was feasible by laser-induced fluorescence. The study is important to developing a new analytical technique of quantitative fluorescence detector which can be applied to the analysis of PAH in soil without pretreatment, and is significant to realization of real-time, in-line,in-situ measurement of PAH in soil.
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Received: 2010-10-06
Accepted: 2011-04-04
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Corresponding Authors:
YANG Ren-jie
E-mail: yrj@mail.nankai.edu.cn
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