نتایج جستجو برای: humic substance
تعداد نتایج: 211688 فیلتر نتایج به سال:
Thermodynamic stability constants of the formation of complexes from the reactions of humic substances with various metals are usually used as parameters to judge the reactivities of both humic substances and metals. However, in calculating the thermodynamic stability constants, complicated processes for the acquisition of activities of components in reactions are absolutely inevitable. In this...
To verify the priming effects of Maillard reaction precursors on microbial decomposition rice straw at different incubation temperatures, method indoor a constant temperature was adopted. In process, addition glucose, catechol or glycine solution alone in mixed conducted temperatures 10 °C, 15 °C and 28 respectively. The C content humic-extracted acid (CHLE), humification index (the ratio humic...
Humic acids are complex, partly macromolecular, yellow-brownish substances occurring in soils, waters and sediments. In order to bring some light on their molecular structure, crop humic acids were cleaved by alkaline hydrolysis (KOH). The products were fractionated by thin layer chromatography to give mono-alcohols which were analysed as acetate derivatives by gas chromatography coupled to mas...
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