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  • Je studována rozpustnost huminových kyselin v organických rozpouštědlech , analyzovány jednotlivé frakce a srovnány metody frakcionace. (cs)
  • Humic acids (HA) are natural compounds which cannot be characterized by chemical formula. They are not chemical individual but a heterogenous mixture of various organic compounds. HA are traditionally defined according to their solubility in alkaline solutions. In previous work it was confirmed that it is possible to subdivide HA into their fraction by dissolving in buffer solution with various pH. In this contribution some organic solvents were used for HA fractionation. In view of HA unique structure various polar and non-polar solvents were chosen for this study. Obtained fractions were characterized by several analytical methods. Composition and structure of individual fractions are compared and discussed.
  • Humic acids (HA) are natural compounds which cannot be characterized by chemical formula. They are not chemical individual but a heterogenous mixture of various organic compounds. HA are traditionally defined according to their solubility in alkaline solutions. In previous work it was confirmed that it is possible to subdivide HA into their fraction by dissolving in buffer solution with various pH. In this contribution some organic solvents were used for HA fractionation. In view of HA unique structure various polar and non-polar solvents were chosen for this study. Obtained fractions were characterized by several analytical methods. Composition and structure of individual fractions are compared and discussed. (en)
Title
  • Study of Humic Acids Fractionation
  • Studium frakcionace huminových kyselin (cs)
  • Study of Humic Acids Fractionation (en)
skos:prefLabel
  • Study of Humic Acids Fractionation
  • Studium frakcionace huminových kyselin (cs)
  • Study of Humic Acids Fractionation (en)
skos:notation
  • RIV/00216305:26310/05:PU51247!RIV06-GA0-26310___
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  • P(GP104/02/D036)
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  • 545237
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  • RIV/00216305:26310/05:PU51247
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  • humic acods, fractionation, solubility, organic solvents (en)
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  • CZ - Česká republika
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  • 99
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  • Klučáková, Martina
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  • 0009-2770
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  • 26310
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