Publication detail

Study of Humic Acids Fractionation

KLUČÁKOVÁ, M.

Original Title

Study of Humic Acids Fractionation

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

humic acods, fractionation, solubility, organic solvents

Authors

KLUČÁKOVÁ, M.

RIV year

2005

Released

20. 9. 2005

Location

Brno

ISBN

0009-2770

Periodical

Chemické listy

Year of study

99

Number

S

State

Czech Republic

Pages from

s542

Pages to

s544

Pages count

3