Characterization and Analysis of DOM in Raw Water in Xiamen and Zhangzhou by 3-DEEM-FRI

区域	范围Ex/Em	代表的物质类型
Ⅰ	220~250/280~330	荧光芳香类蛋白Ⅰ(酪氨酸)
Ⅱ	220~250/330~380	荧光芳香类蛋白Ⅱ(色氨酸)
Ⅲ	220~250/380~500	类富里酸
Ⅳ	250~280/280~380	溶解性微生物代谢产物
Ⅴ	250~400/380~500	类腐殖酸

Table 2. The correlation analysis results between regions
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Table 2. The correlation analysis results between regions
R² Ф_1,_n Ф_2,_n Ф_3,_n Ф_4,_n Ф_5,_n
Ф_1,_n 1 0.852 52 0.074 56 0.970 36 -0.179 97
Ф_2,_n 1 -0.161 63 0.804 16 0.041 92
Ф_3,_n 1 0.054 75 0.244 32
Ф_4,_n 1 -0.210 78
Ф_5,_n 1

Table 3. Indicators and fluorescence characteristics of water samples

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Table 3. Indicators and fluorescence characteristics of water samples

采样点	N $H_{4}^{+}$ -N /(mg·L^-1)	TOC /(mg·L^-1)	UV₂₅₄ /m^-1	SUVA /[L·(m·mg)^-1]	FI	BIX	HIX	β∶α
江东泵站	0.32	1.24	4.76	3.84	1.28	0.92	2.24	0.83
北溪水闸	0.39	1.49	5.40	3.62	1.47	0.77	2.02	0.75
汀溪水库	0.61	2.96	4.11	1.39	1.49	0.86	1.75	0.80
莲花水库	0.49	3.94	6.03	1.53	1.46	0.95	2.06	0.90
坂头水库	0.50	4.77	4.83	1.01	1.68	0.95	1.88	0.90
石兜水库	0.77	6.11	7.87	1.29	1.76	0.98	1.10	0.97

Table 4. The correlation analysis results between the parameters
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Table 4. The correlation analysis results between the parameters
R² FI BIX HIX β∶α UV₂₅₄
FI 1 -0.045 42 0.621 54 0.285 8 0.159 68
BIX 1 -0.074 94 0.839 82 0.012 21
HIX 1 0.215 87 0.358 54
β∶α 1 0.362 99
UV₂₅₄ 1

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Yan-jie CHEN, Yu-qian CUI, Qing-song LI, Bo-qiang LI, Ji-ping WANG, Guo-yuan CHEN, Jie LIAO, Guo-xin LI. Characterization and Analysis of DOM in Raw Water in Xiamen and Zhangzhou by 3-DEEM-FRI[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 499

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