Detail publikace

Size and Charge Evaluation of Standard Humic and Fulvic Acids as Crucial Factors to Determine Their Environmental Behavior and Impact

KLUČÁKOVÁ, M.

Originální název

Size and Charge Evaluation of Standard Humic and Fulvic Acids as Crucial Factors to Determine Their Environmental Behavior and Impact

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In this work, the size and charge of humic and fulvic standards purchased from the International Humic Substances Society are presented and discussed. Since humic acids are only partially soluble in water, their alkaline solutions were used in this study. Fulvic acids were analyzed both in water and NaOH solution. The intensity, volume, and number particle size distribution were obtained by means of dynamic light scattering. It was found that both particle size distribution and zeta potential are influenced by pH and concentration. The average diameter derived from the intensity distribution was determined to by an inadequate indicator of particle sizes of humic substances. Two or three different size fractions were detected in the studied systems. The colloidal stability was higher for humic acids. In the case of fulvic acids, the colloidal stability increased with increasing pH as a result of the dissociation of their functional groups.

Klíčová slova

Humic acids, Fulvic acids, Solubility, Stability, Particle size, Charge

Autoři

KLUČÁKOVÁ, M.

Vydáno

5. 7. 2018

Nakladatel

Frontiers

ISSN

2296-2646

Periodikum

Frontiers in Chemistry

Ročník

6

Číslo

235

Stát

Švýcarská konfederace

Strany od

1

Strany do

8

Strany počet

8

BibTex

@article{BUT147980,
  author="Martina {Klučáková}",
  title="Size and Charge Evaluation of Standard Humic and Fulvic Acids as Crucial Factors to Determine Their Environmental Behavior and Impact",
  journal="Frontiers in Chemistry",
  year="2018",
  volume="6",
  number="235",
  pages="1--8",
  doi="10.2289/fchem.2018.00235",
  issn="2296-2646"
}