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10 June 2006 Laser Raman spectroscopy in water analysis
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Proceedings Volume 6344, Advanced Laser Technologies 2005; 63441J (2006)
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China
Raman Spectroscopy is a molecular vibrational spectroscopic technique based on the Raman effect, which is characterized by the frequency shift that caused by interactions of molecule and photon and shows the information in molecules. There are many advantages to study the sample with Raman spectroscopy, such as simple system structure with relative lower cost, wide variety of detectable masses, nondestructive detect for multicomponent sample, good sensitivity, feasibility of real-time analysis and online examination assisted with optical fiber and computers, etc. As a powerful tool for quantitative or qualitative analysis, Raman spectroscopy has been employed to solve certain unique problems in chemical and environmental analysis and in industrial process monitoring and control. Now, there are many kinds of organic contaminants, particularly aromatic molecules, in industrial waste water, so it is essential to determine and monitor these contaminants. This paper analyzed the Raman spectra of benzene and benzene derivatives (toluene, ethylbenzene, chlorobenzene, and nitrobenzene) in detail, and assigned their Raman identified spectra. The results show that Raman spectroscopy is useful to analyze benzene derivatives in waste water.
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Gang Li and Guoping Zhang "Laser Raman spectroscopy in water analysis", Proc. SPIE 6344, Advanced Laser Technologies 2005, 63441J (10 June 2006);

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