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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Experimental studies of organic matter in natural waters of lakes in Vladimir region using a set of analytical methodsстатья
- Авторы: Grishantseva E.S., Alekhin Yu V., Drozdova O.Yu, Demin V.V., Zavgorodnyaya Y.A.
- Журнал: Experiment in GeoSciences
- Том: 26
- Номер: 1
- Год издания: 2020
- Первая страница: 126
- Последняя страница: 129
- Аннотация: Organic matter in natural waters takes an active part in the migration of trace elements, playing a crucial role in the biogeochemical cycles of trace elements. The paper discusses the results of research on the organic matter of natural waters of lakes in the Vladimir region, obtained using a set of analytical methods. As objects of study selected representative waterbodies with different levels of primary productivity: eutrophic lake Ershevik, dystrophic lake Ignatkovo. The proposed set of analytical methods for determining the content, composition and forms of finding organic matter and related trace elements includes determining the content of dissolved organic carbon and N on the liquid element analyzer LiquiTOC trace, Elementar; studying the molecular mass distribution of organic matter by high-performance liquid chromatography in a variant of gel-penetrating chromatography; studying the forms of finding organic matter and trace elements by cascade filtration with the separation of size fractions; spectrophotometric measurement of water density using a Specord 50 (ANALYTIK JENA) and 511 UV/Vis (Portlab) spectrophotometer to study the absorption spectra of samples in the UV and visible regions of the spectrum, followed by the calculation of indicators that characterize the dissolved organic matter, the degree of its humification, the proportion of autochthonous and allochthonous organic matter.
- Добавил в систему: Гришанцева Елена Сергеевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | statya_Grishantseva.pdf | statya_Grishantseva.pdf | 1,8 МБ | 23 ноября 2020 [GrishantsevaES] |