Silicon in surface waters of the humid zone (the case of Karelian waterbodies)
We report a first investigation of the following dissolved forms of silicon in natural waters of Karelia: monomeric orthosilicic acid, polysilicic acids and silicon within dissolved organic compounds. A linear relationship was found between the concentration of the silicon-bearing organic compounds...
| Published in: | Proceedings of the Karelian Research Centre of the Russian Academy of Sciences |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English Russian |
| Published: |
Karelian Research Centre of the Russian Academy of Sciences
2019
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| Subjects: | |
| Online Access: | https://doi.org/10.17076/lim942 https://doaj.org/article/49f792cb7aab457fb9199aacc8513a57 |
| Summary: | We report a first investigation of the following dissolved forms of silicon in natural waters of Karelia: monomeric orthosilicic acid, polysilicic acids and silicon within dissolved organic compounds. A linear relationship was found between the concentration of the silicon-bearing organic compounds and indirect characteristics of organic matter content, with the correlation coefficient at 0.85. The seasonal variation of total dissolved silicon concentration and the ratio of its forms in different types of water bodies in Karelia were determined. The content of dissolved silicon was the lowest in spring and summer due to diatom plankton production. A technique has been suggested for tallying silicon within organic compounds in natural waters using persulfate oxidation in alkaline solution. |
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