Przeglądaj wg Autor "Mielnik, Lilia"

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    Właściwości luminescencyjne ekstraktów alkalicznych substancji humusowych otrzymanych z nadkładów materiału ziemnego zastosowanych na modelu rekultywacyjnym znajdującym się na terenie zakładów elektrowni „Dolna Odra” są w Nowym Czarnowie
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2011) Mielnik, Lilia; Katedra Fizyki i Agrofizyki, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
    Research was conducted on selected attempts to overlayers obtained from natural material used on experimental plots at the site of the Power Plant Dolna Odra SA in Nowe Czarnowo. In attempts of overlayers to determine the content of Corg and Ntot. Humic substances (HS) were extracted with a solution of 0.1 M NaOH. As a measure of organic matter content in the obtained extracts were Corg content in them. Photoinduced luminescence (FL) of humic substances was induced with a halogen light of 1000 to 5000 [µmol ⋅ m–2 ⋅ s–1] photon flux density. The FL intensity was recorded within the wavelength range of 400 to 600 nm, and within the time range of 0.15 s to 0.55 s after excitation. It was found that the components included in the overlayers of respondents have a significant impact on their content of organic matter. Also obtained significant differences in the values of intensity of photoinduced luminescence of studied SH. The differences may be evidence of the variable quantitative and qualitative contribution of photoluminophors in the structure of the examined HA molecules, as well as of their different photochemical reactivity.