Zhao Nan-jing, Liu Wen-qing, Li Hong-bin, Cui Zhi-cheng, Zhang Yu-jun, Liu Jian-guo, Ding Zhi-qun, Yang Li-shu
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2005 Sep;25(9):1460-2.
In the experiment a frequency doubled radiation of Nd:YAG laser was used for excitation at 532 nm. The fluorescence spectra of dissolved organic matter (DOM) and chlorophyll a (Chl-a) in several types of water samples with laser-induced fluorescence (LIF) measurements using a 532 nm wavelength excitation source were measured in the laboratory, and the spectral characteristics of DOM and Chl-a were analysed. The characteristics of turbidity were investigated by measuring the amount of scattering light of suspended particles in the water volume. The curve of scattering intensity against corresponding turbidity of SiO2 is showed. The possibilities of water quality monitoring based upon the fluorescence spectral characteristics of contaminations and the turbidity by means of LIF method.
在该实验中，使用了Nd:YAG激光的倍频辐射在532nm波长处进行激发。在实验室中，利用532nm波长激发源通过激光诱导荧光（LIF）测量法测定了几种水样中溶解有机物（DOM）和叶绿素a（Chl-a）的荧光光谱，并分析了DOM和Chl-a的光谱特征。通过测量水体中悬浮颗粒的散射光量来研究浊度特性。给出了散射强度相对于SiO2相应浊度的曲线。探讨了基于污染物荧光光谱特征和浊度利用LIF方法进行水质监测的可能性。
