The Impact of Profile Genesis and Land Use of Histosol on Its Organic Substance Stability and Humic Acid Quality at the Molecular Level

Autor: Kristina Amaleviciute-Volunge, Jonas Volungevicius, Justinas Ceponkus, Rasa Platakyte, Ieva Mockeviciene, Alvyra Slepetiene, Viia Lepane

Publikováno v: Sustainability; Volume 15; Issue 7; Pages: 5921
Sustainability: Special Issue "Advanced Studies of Soil Organic Matter and the Application of Sustainable Soil Management Practices", Basel : MDPI, 2023, vol. 15, iss. 7, art. no. 5921, p. [1-22]

This study is designed to evaluate soil organic matter (SOM) quality indicators: molecular indicators of dissolved organic matter (DOM) and hydrophobicity of humic acid (HA), distribution of quantity in humified and labile fractions of histosols duri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cee7b129b9cf8de108dfe8effbb97cae
https://doi.org/10.3390/su15075921

Techniques involving UV absorption spectroscopy for estimation of structural changes in soil organic matter

Autor: Helen Otsep, Viia Lepane, Marek Szczepański, Lech Wojciech Szajdak

UV spectroscopy is extensively used for the quantitative analysis of natural macromolecules because of simplicity. As a qualitative method it is not very selective. The absorption spectra of organic macromolecules are generally broad bands without di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::892e0a08ea7da07e411999f8bcbbdc84
https://doi.org/10.5194/egusphere-egu21-15909

High-performance liquid chromatography (HPLC)-size exclusion chromatography (SEC) for qualitative detection of humic substances and dissolved organic matter in mineral soils and peats in Lithuania

Autor: Viia Lepane, Inga Liaudanskiene, Ieva Jokubauskaite, Colin A. Booth, Alvyra Slepetiene, Danute Karcauskiene, Jonas Šlepetys, Kristina Amaleviciute

Publikováno v: International Journal of Environmental Analytical Chemistry. 95:508-519

High-performance liquid chromatography (HPLC) with size exclusion (SEC) separation function was used to isolate and examine the molecular mass (MM) distributions and polydispersity of humic substances (HSs) and dissolved organic matter (DOM) from min

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::472ba7f9e229e7d383b178eae983075e
https://doi.org/10.1080/03067319.2015.1048435

Partitioning of metals between operational fractions in the sediment record from Lake Peipsi

Autor: Viia Lepane, Tiiu Alliksaar, Malvina Morriset, Anu Viitak, Maile Laane

Publikováno v: Chemistry and Ecology. 26:35-48

A sequential extraction procedure was used to study the partitioning of metals (Ca, Mn, Fe, Cu, Zn and Cd) between operationally defined fractions in the interval covering the last 150 years of the sediment record from Lake Peipsi, Estonia. The resul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1bdafc203418e4b57a6a4e8bd84f3d9
https://doi.org/10.1080/02757540.2010.501031

Tracking changes in the organic matter in a lake palaeoecosystem: A spectrophotometric approach

Autor: Aina Leeben, Tiiu Alliksaar, Atko Heinsalu, Viia Lepane, Siim Veski

Publikováno v: Organic Geochemistry. 39:915-918

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cef70c4306f4683ea202f70caac66427
https://doi.org/10.1016/j.orggeochem.2008.05.004