Fluorescence of Size-Fractioned Humic Substance Extracted from Sediment and Its Effect on the Sorption of Phenanthrene
Abstract
:1. Introduction
2. Research Method and Material
2.1. Sample Preparation
2.2. HS Size Fraction Separation
2.3. UV/Vis Measurements
2.4. Fluorescence Spectroscopy
2.5. Fluorescence Quenching
2.6. Statistical Analysis and Calculation of Fluorescence Data
3. Results and Discussion
3.1. DOC Concentration and Carbon Mass Fraction of Size-Fractioned HS
3.2. Optical Indicators
3.3. Sorption Constants between HS and Phe
3.4. Correlation of log KHS with Indicators
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Samples | pH | OM (%) | TOC (%) |
---|---|---|---|
AD | 7.14 ± 0.12 | 6.60 ± 1.03 | 2.51 ± 0.69 |
FD | 7.22 ± 0.03 | 7.06 ± 1.36 | 2.71 ± 0.70 |
Samples | BHS mg/L | HHS mg/L | MHS mg/L | LHS mg/L |
---|---|---|---|---|
AD | 276–329 | 1451–1833 | 638–752 | 59–78 |
FD | 279–370 | 1108–2220 | 728–946 | 52–71 |
Samples (MW) | SUVA254 (L/mg-C/m) | S275–295 | FI |
---|---|---|---|
AD_HHS (10 kDa to 0.45 μm) | 2.26 ± 0.62 a | 0.0121 ± 0.0006 a | 1.47 ± 0.05 a |
FD_HHS (10 kDa to 0.45 μm) | 3.11 ± 0.54 a | 0.0120 ± 0.0002 a | 1.47 ± 0.01 a |
AD_MHS (1–10 kDa) | 2.95 ± 0.34 a | 0.0117 ± 0.0006 a | 1.46 ± 0.01 a |
FD_MHS (1–10 kDa) | 2.02 ± 0.66 a | 0.0133 ± 0.0016 a | 1.49 ± 0.02 a |
AD_LHS (<1 kDa) | 1.75 ± 0.38 b | 0.0153 ± 0.0006 *,b | 1.76 ± 0.01 b |
FD_LHS (<1 kDa) | 1.75 ± 0.14 b | 0.0177 ± 0.0006 b | 1.81 ± 0.04 b |
Samples | HHS | MHS | LHS |
---|---|---|---|
AD | 4.41 ± 0.29 (3) * | 4.39 ± 0.17 (3) | 4.09 ± 0.10 (3) |
FD | 4.44 ± 0.17 (3) | 4.44 ± 0.00 (2) | 3.97 ± 0.01 (2) |
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Shi, M.-S.; Huang, W.-S.; Hsu, L.-F.; Yeh, Y.-L.; Chen, T.-C. Fluorescence of Size-Fractioned Humic Substance Extracted from Sediment and Its Effect on the Sorption of Phenanthrene. Int. J. Environ. Res. Public Health 2019, 16, 5087. https://doi.org/10.3390/ijerph16245087
Shi M-S, Huang W-S, Hsu L-F, Yeh Y-L, Chen T-C. Fluorescence of Size-Fractioned Humic Substance Extracted from Sediment and Its Effect on the Sorption of Phenanthrene. International Journal of Environmental Research and Public Health. 2019; 16(24):5087. https://doi.org/10.3390/ijerph16245087
Chicago/Turabian StyleShi, Mei-Sheu, Wei-Shiang Huang, Liang-Fong Hsu, Yi-Lung Yeh, and Ting-Chien Chen. 2019. "Fluorescence of Size-Fractioned Humic Substance Extracted from Sediment and Its Effect on the Sorption of Phenanthrene" International Journal of Environmental Research and Public Health 16, no. 24: 5087. https://doi.org/10.3390/ijerph16245087