Detail publikace

Complexation of Copper(II) with Humic Acids Studied by Ultrasound Spectrometry

KLUČÁKOVÁ, M.

Originální název

Complexation of Copper(II) with Humic Acids Studied by Ultrasound Spectrometry

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Copper biogeochemistry is controlled by bonding to natural organic matter. The soluble forms of bonded copper can be more biologically active due to the higher migration in environmental systems and instability of some copper-humic complexes. In this work, the interactions of copper(II) ions with humic acids are studied by means of high-resolution ultrasound spectrometry. It was found that the stoichiometry of the formed complexes is strongly influenced by the organization of humic acid in solution and by the final pH value in equilibrium. Although the ratio between the added copper and humic acids in all used concentrations was constant and the initial pH value was neutral, we observed significant differences between the individual systems. The highest binding ability was determined for a humic content of 0.5 g/dm3.More diluted and more concentrated systems were able to bind lower amounts of copper. The implemented method is very sensitive and can be utilized not only for monitoring copper binding but also as an indicator of conformational changes of humic acid in solutions with varying concentration.

Klíčová slova

humic acids, complexation, konformace, molekulární organizace, copper, ultrasound spectrometry

Autoři

KLUČÁKOVÁ, M.

Rok RIV

2012

Vydáno

14. 5. 2012

Nakladatel

Hindawi Publishing Corporation

ISSN

2090-200X

Periodikum

Organic Chemistry International

Ročník

2012

Číslo

5

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

URL

https://www.hindawi.com/journals/oci/2012/206025/

Plný text v Digitální knihovně

http://hdl.handle.net/11012/68388

BibTex

@article{BUT92821,
  author="Martina {Klučáková}",
  title="Complexation of Copper(II) with Humic Acids Studied by Ultrasound Spectrometry",
  journal="Organic Chemistry International",
  year="2012",
  volume="2012",
  number="5",
  pages="1--6",
  doi="10.1155/2012/206025",
  issn="2090-200X",
  url="https://www.hindawi.com/journals/oci/2012/206025/"
}