In this paper, we report a method for rapid water quality evaluation based on laser-excited dissolved organic matter (DOM) fluorescence and water Raman peak. A formula, which results in the score from 0 to 100, was proposed to evaluate water quality. We first employed this method to evaluate the self-prepared water samples with humic acid or fulvic acid under different concentrations from 0.01 mg/L to 8 mg/L. In these experiments, the water samples were tested by our self-customed microlaser spectrometer. The good correlations between fluorescence intensity of DOM and concentrations of humic acid or fulvic acid were found. These results indicated that the method we proposed is reasonable on the water quality assessment. Furthermore, we evaluated water samples from five different sources and the results consisted well with the general knowledge of the water quality. These results demonstrated that this method offers a number of advantages for water quality evaluation including compact configuration, rapid test process, simple operation, and low cost.

中文翻译：

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基于DOM的微激光荧光光谱仪水质快速评价方法

在本文中，我们报告了一种基于激光激发的溶解有机物 (DOM) 荧光和水拉曼峰的快速水质评估方法。提出了一个从 0 到 100 分的公式来评估水质。我们首先使用这种方法来评估含有腐殖酸或富里酸的自制水样，浓度为 0.01 mg/L 至 8 mg/L。在这些实验中，水样由我们定制的微激光光谱仪进行测试。发现DOM的荧光强度与腐植酸或富里酸的浓度之间存在良好的相关性。这些结果表明我们提出的方法在水质评价中是合理的。此外，我们评估了来自五个不同来源的水样，结果与水质的一般知识非常吻合。这些结果表明，该方法为水质评价提供了许多优点，包括结构紧凑、测试过程快速、操作简单和成本低。