Adsorption-induced enhancement of the differential pulse polarographic peak of Eu in the presence of natural organic matter: a comparison of different humic substances

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F09%3A00005104" target="_blank" >RIV/44555601:13520/09:00005104 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Adsorption-induced enhancement of the differential pulse polarographic peak of Eu in the presence of natural organic matter: a comparison of different humic substances

Popis výsledku v původním jazyce

The polarographic signal (maximum peak current) of europium in the differential pulse polarographic (DPP) mode has been found to increase considerably in the presence of humic substances. Different humic substances, such as coal and peat humic acids, soil fulvic acids, and Aldrich humic acids, exhibited very similar effects on the DPP signal of Eu for the cases when the measurements were carried out under the same conditions. The peak enhancement was more pronounced in sodium acetate with a pH value of7.50 than it was in the acetate buffer with a pH value of 4.65; this effect was related to the reduced complex-forming or metal-binding capability of humic substances at lower pH values. Dependencies of the DPP peak height on the concentration of different humic substances were measured and fitted to a Langmuir-type equation.

Název v anglickém jazyce

Adsorption-induced enhancement of the differential pulse polarographic peak of Eu in the presence of natural organic matter: a comparison of different humic substances

Popis výsledku anglicky

The polarographic signal (maximum peak current) of europium in the differential pulse polarographic (DPP) mode has been found to increase considerably in the presence of humic substances. Different humic substances, such as coal and peat humic acids, soil fulvic acids, and Aldrich humic acids, exhibited very similar effects on the DPP signal of Eu for the cases when the measurements were carried out under the same conditions. The peak enhancement was more pronounced in sodium acetate with a pH value of7.50 than it was in the acetate buffer with a pH value of 4.65; this effect was related to the reduced complex-forming or metal-binding capability of humic substances at lower pH values. Dependencies of the DPP peak height on the concentration of different humic substances were measured and fitted to a Langmuir-type equation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F08%2F0758" target="_blank" >GA104/08/0758: Netradiční sorbenty v environmentálních aplikacích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Studia Oecologica

ISSN

1802-212X

e-ISSN

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Svazek periodika

3

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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