S
Sonja Lojen
Researcher at Jožef Stefan Institute
Publications - 85
Citations - 2004
Sonja Lojen is an academic researcher from Jožef Stefan Institute. The author has contributed to research in topics: Stable isotope ratio & Sedimentary organic matter. The author has an hindex of 21, co-authored 84 publications receiving 1784 citations. Previous affiliations of Sonja Lojen include University of Ljubljana & University of Nova Gorica.
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Determination of geographical origin of commercial tomato through analysis of stable isotopes, elemental composition and chemical markers
Anja Mahne Opatić,Marijan Nečemer,Sonja Lojen,Sonja Lojen,Jasmina Masten,Emil Zlatić,Helena Šircelj,David Stopar,Rajko Vidrih +8 more
TL;DR: In this paper, three sets of parameters were used: stable isotopes of the major bioelements, macro and micro elements (P, K, Ca, S, Cl, Zn, Br, Rb, Sr), and chemical markers (total antioxidant potential, total phenolic compounds, lutein, nitrates and nitrites, ammonium).
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Decomposition of sedimentary organic matter and methane formation in the recent sediment of Lake Bled (Slovenia)
TL;DR: In this paper, the decomposition of sedimentary organic matter and methane formation in a eutrophic dimictic subalpine lake Lake Bled was investigated by measurement of in situ concentrations of dissolved inorganic carbon DIC in the pore water and its stable carbon isotopic composition, as well as by incubation experiments.
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Identifying the hydrological behavior of a complex karst system using stable isotopes
TL;DR: In this article, the Ljubljanica river catchment in central Slovenia was analyzed using stable isotope composition (δ18O, δ2H) of precipitation as inputs, and of several karst springs/sinks as outputs.
A stable isotope investigation of the classical karst aquifer: evaluating karst groundwater components for water quality preservation raziskava kra(kega vodonosnika s stabilnimi izotopi
TL;DR: A stable isotope investigation of the classical karst aquifer was carried out in this paper, where the influence of the So-a river on the groundwater of this region was examined using mercury, a pollutant of elevated concentration in the So~a, as an additional tracer of Soa river water.
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Carbon isotope variability and sedimentology of the Upper Permian carbonate rocks and changes across the Permian-Triassic boundary in the Masore section (Western Slovenia)
TL;DR: Carbonate and total organic carbon stable isotope analyses in the Masore section in western Slovenia indicate a high storage of organic matter during the Upper Permian, as well as the well known worldwide carbon isotope event across the P/Tr boundary.