荧光光谱法水中矿物油的检测及研究
本文选题:矿物油 切入点:荧光光谱法 出处:《燕山大学》2015年硕士论文 论文类型:学位论文
【摘要】:油污染已成为我国水域的主要环境问题之一,为了掌握油污染的动态变化趋势,实时在线检测水中石油浓度的问题亟待解决。荧光光谱分析在矿物油类污染物检验技术研究领域占有重要地位。本文通过对水中矿物油检测方法与检测技术的深入分析得知,现有的水中矿物油测量仪大多存在体积笨重、检测时间长、造价高等弊端。因此,本文从荧光检测的基本原理出发,根据实验及理论知识,结合荧光分析法与光电检测技术,设计了一种简便的模块化组合方式的荧光光谱测量系统。首先,论文对荧光光谱分析法检测水中矿物油的基本背景和国内外研究现状做了简要概述,并且探究了荧光的产生机理等理论知识,分析了矿物油的结构特点,并对其采用荧光光谱法检测进行了可行性研究,分析了各种环境因素对荧光强度的影响。其次,根据石油荧光检测原理,深入分析了荧光法测量水中油浓度的可行性。根据石油激发光谱和荧光光谱的现有数据确定了矿物油检测的最佳激发波长和荧光波长。最后,根据混合矿物油的光谱吸收特点来确定它们的主要成分。分析了系统的主要组成部分,选用了脉冲氙灯为激发光源,设计了激发源脉冲氙灯的驱动电路、干涉滤光片等组成的检测系统。
[Abstract]:Oil pollution has become one of the main environmental problems in the waters of our country. In order to understand the dynamic trend of oil pollution, The problem of real-time on-line detection of oil concentration in water should be solved urgently. Fluorescence spectrum analysis plays an important role in the field of inspection technology of mineral oil pollutants. In this paper, the detection methods and detection techniques of mineral oil in water are deeply analyzed. Most of the existing water mineral oil measuring instruments have the disadvantages of bulky volume, long detection time and high cost. Therefore, based on the basic principle of fluorescence detection, according to the experimental and theoretical knowledge, combined with fluorescence analysis and photoelectric detection technology, A simple and modular fluorescence spectrum measurement system is designed. Firstly, the basic background and research status of fluorescence spectrum analysis for detecting mineral oil in water are briefly summarized. It also explores the mechanism of fluorescence and other theoretical knowledge, analyzes the structural characteristics of mineral oil, studies the feasibility of fluorescence spectrum detection, analyzes the influence of various environmental factors on the fluorescence intensity. According to the principle of oil fluorescence detection, the feasibility of measuring oil concentration in water by fluorescence method is analyzed in depth. According to the existing data of petroleum excitation spectrum and fluorescence spectrum, the optimum excitation wavelength and fluorescence wavelength of mineral oil detection are determined. The main components of mixed mineral oil are determined according to their spectral absorption characteristics. The main components of the system are analyzed. The pulse xenon lamp is selected as the excitation light source, and the driving circuit of the pulsed xenon lamp is designed. Interference filter and other components of the detection system.
【学位授予单位】:燕山大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:X832;O657.3
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