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基于外腔式量子级联激光光谱的挥发性气体检测方法

Detection Method of Volatile Organic Compounds Based on External Cavity Quantum Cascade Laser Spectroscopy

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摘要

将新型的外腔式宽调谐量子级联激光器(ECQCL)作为激发光源,高频石英谐振音叉作为光电探测器,开展了挥发性有机物的中红外激光光谱定量分析和成分识别研究。以不同站点和不同型号的汽油样本作为检测对象,检测它们的红外吸收光谱,并与美国西北太平洋国家实验室数据库的标准光谱进行比较,结果具有很好的一致性;实验中结合自行建立的插值算法和多元线性回归算法模型,可实现不同型号汽油样本中主要挥发性有机物的定量分析和成分归属分析。

Abstract

We use the new external cavity widely-tuned quantum cascade laser (ECQCL) as the excitation light source and the high frequency quartz resonant tuning fork as the photoelectric detector to study the quantitative analysis and composition identification of volatile organic compounds (VOCs) by mid-infrared laser spectroscopy. The infrared absorption spectra of different types of gasoline samples from different sites are carefully analyzed and compared with the standard spectra taken from the Pacific Northwest National Laboratory (PNNL) database. The results are very consistent. In this experiment, a self-established spectral analysis model integrated with one dimensional cubic spline interpolation algorithm (CSIA) and multiple linear regression algorithm (MLRM) is developed and successfully used for quantitative analysis and component identification of VOCs.

Newport宣传-MKS新实验室计划
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中图分类号:O433.1

DOI:10.3788/aos201838.0430002

所属栏目:光谱学

基金项目:科技部国家重点研发计划(2016YFC0302202)、国家海洋公益行业科研专项(201505017)、国家自然科学基金(61675005,61440010,41306103)、安徽省自然科学基金(1508085MF118)、安徽省科技攻关项目(1501041136)、安徽省留学回国人员科技活动资金(J05015143)、安徽大学人才引进基金(10117700014)

收稿日期:2017-09-11

修改稿日期:2017-11-16

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丁俊雅:安徽大学物理与材料科学学院, 安徽 合肥 230601
何天博:安徽大学物理与材料科学学院, 安徽 合肥 230601
王洪亮:国家深海基地管理中心, 山东 青岛 266237
丁忠军:国家深海基地管理中心, 山东 青岛 266237
俞本立:安徽大学物理与材料科学学院, 安徽 合肥 230601
李劲松:安徽大学物理与材料科学学院, 安徽 合肥 230601

联系人作者:李劲松(jingsong_li@ahu.edu.c)

备注:丁俊雅(1993—),女,硕士研究生,主要从事新型激光光谱技术及其应用方面的研究。E-mail: 577646543@qq.com

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引用该论文

Ding Junya,He Tianbo,Wang Hongliang,Ding Zhongjun,Yu Benli,Li Jinsong. Detection Method of Volatile Organic Compounds Based on External Cavity Quantum Cascade Laser Spectroscopy[J]. Acta Optica Sinica, 2018, 38(4): 0430002

丁俊雅,何天博,王洪亮,丁忠军,俞本立,李劲松. 基于外腔式量子级联激光光谱的挥发性气体检测方法[J]. 光学学报, 2018, 38(4): 0430002

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