Chuan-yang LIU, Yi-di CHAI, Xian-gen XU, Jun ZHOU, Sen-sen LU, Jian SHEN, Miao HE, Jing WU. Aqueous Fluorescence Fingerprint Characteristics and Discharge Source Identification of a River in Southern China[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2142