有机质是水体多物质、多相作用的中枢，其紫外-可见光谱蕴含丰富的水质指纹信息。研制多化学态紫外-可见差分光谱水质指纹识别技术与装备，揭示有机质及关联污染物的来源，以及其在河流、海洋迁移转化机制与行为效应。

代表性论文：

(1) Gu, X., Zhang, C., Mo, S., Korshin, G. V. & Yan, M. Insights into Molecules of Natural Organic Matter Binding with a Copper(II) Cation: Interpretation Based on FT-ICR-MS and Differential UV–Vis Absorbance Spectra. ACS ES&T Water, doi:10.1021/acsestwater.3c00296 (2023).

(2) Yan, M. et al. Effects of charging on the chromophores of dissolved organic matter from the Rio Negro basin. Water Res 59, 154-164, doi:http://dx.doi.org/10.1016/j.watres.2014.03.044 (2014).

(3)  Mo, S., Liu, Z., Hertkorn, N. & Yan, M. Spectroscopic Fingerprint of Chromophoric Dissolved Organic Matter in Global Ocean.  (In preparation).