Detail publikace

Study of Humic Acids Fractionation

KLUČÁKOVÁ, M.

Originální název

Study of Humic Acids Fractionation

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

humic acods, fractionation, solubility, organic solvents

Autoři

KLUČÁKOVÁ, M.

Rok RIV

2005

Vydáno

20. 9. 2005

Místo

Brno

ISSN

0009-2770

Periodikum

Chemické listy

Ročník

99

Číslo

S

Stát

Česká republika

Strany od

s542

Strany do

s544

Strany počet

3