Humic Substances from Manila Bay and Bolinao Bay Sediments
The C,H,N composition of sedimentary humic acids (HA) extracted from three sites in Manila Bay and six sites in Bolinao Bay yielded H/C atomic ratios of 1.1-1.4 and N/C atomic ratios of 0.09 - 0.16. The Manila Bay HA's had lower H/C and N/C ratios compared to those from Bolinao Bay. The IR spec...
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| Format: | Article |
| Language: | English |
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University of the Philippines
1997-12-01
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| Series: | Science Diliman |
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| Online Access: | http://journals.upd.edu.ph/index.php/sciencediliman/article/view/261 |
| Summary: | The C,H,N composition of sedimentary humic acids (HA) extracted from three sites in Manila Bay and six sites in Bolinao Bay yielded H/C atomic ratios of 1.1-1.4 and N/C atomic ratios of 0.09 - 0.16. The Manila Bay HA's had lower H/C and N/C ratios compared to those from Bolinao Bay. The IR spectra showed prominent aliphatic C-H and amide I and II bands. Manila Bay HA's also had less diverse molecular composition based on the GC-MS analysis of the CuO and alkaline permanganate oxidation products of the humic acids. |
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| ISSN: | 0115-7809 2012-0818 |