A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions

Milić Komić, Sonja; Potkonjak, Nebojša I; Gorjanović, Stanislava Z; Veljović-Jovanović, Sonja; Pastor, Ferenc; Sužnjević, Desanka

doi:10.1002/elan.201100476

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2011

Authors

Milić Komić, Sonja

Potkonjak, Nebojša I

Gorjanović, Stanislava Z

Veljović-Jovanović, Sonja

Pastor, Ferenc

Sužnjević, Desanka

Article (Published version)

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Abstract

The behavior of chlorogenic acid (CGA) and its interaction with Hg(II), Pb(II), Cu(II), Cd(II) and Zn(II) has been studied using direct current (DC) and differential-pulse polarography (DPP). Adsorptive and kinetic/catalytic anodic waves of CGA have been detected at -0.02 and -0.18 V vs. SCE, respectively; Hg(I)-CGA surface disproportionation has been assumed. Reduction of Hg(II)-ions, added in the buffered solution of CGA (pH 7.5), occurs rather than complexation, while the complex forming ability of CGA towards Pb(II) and Cu(II) has been observed. Stoichiometry 1?:?1 for Pb(II)-CGA, and 1?:?1 and 1?:?2 for Cu(II)-CGA has been established applying Jobs method of continuous variation on DPP data. UV-vis spectrophotometric measurements additionally confirmed the existence and stoichiometry of Cu(II) complexes.

Keywords:

Polarography / Metal ions / Complexing ability / Chlorogenic acid

Source:
Electroanalysis, 2011, 23, 12, 2935-2940

Publisher:

Wiley-Blackwell, Malden

Funding / projects:

DOI: 10.1002/elan.201100476

ISSN: 1040-0397

WoS: 000298063500022

Scopus: 2-s2.0-83355160805

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TY  - JOUR
AU  - Milić Komić, Sonja
AU  - Potkonjak, Nebojša I
AU  - Gorjanović, Stanislava Z
AU  - Veljović-Jovanović, Sonja
AU  - Pastor, Ferenc
AU  - Sužnjević, Desanka
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/462
AB  - The behavior of chlorogenic acid (CGA) and its interaction with Hg(II), Pb(II), Cu(II), Cd(II) and Zn(II) has been studied using direct current (DC) and differential-pulse polarography (DPP). Adsorptive and kinetic/catalytic anodic waves of CGA have been detected at -0.02 and -0.18 V vs. SCE, respectively; Hg(I)-CGA surface disproportionation has been assumed. Reduction of Hg(II)-ions, added in the buffered solution of CGA (pH 7.5), occurs rather than complexation, while the complex forming ability of CGA towards Pb(II) and Cu(II) has been observed. Stoichiometry 1?:?1 for Pb(II)-CGA, and 1?:?1 and 1?:?2 for Cu(II)-CGA has been established applying Jobs method of continuous variation on DPP data. UV-vis spectrophotometric measurements additionally confirmed the existence and stoichiometry of Cu(II) complexes.
PB  - Wiley-Blackwell, Malden
T2  - Electroanalysis
T1  - A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions
EP  - 2940
IS  - 12
SP  - 2935
VL  - 23
DO  - 10.1002/elan.201100476
ER  -

@article{
author = "Milić Komić, Sonja and Potkonjak, Nebojša I and Gorjanović, Stanislava Z and Veljović-Jovanović, Sonja and Pastor, Ferenc and Sužnjević, Desanka",
year = "2011",
abstract = "The behavior of chlorogenic acid (CGA) and its interaction with Hg(II), Pb(II), Cu(II), Cd(II) and Zn(II) has been studied using direct current (DC) and differential-pulse polarography (DPP). Adsorptive and kinetic/catalytic anodic waves of CGA have been detected at -0.02 and -0.18 V vs. SCE, respectively; Hg(I)-CGA surface disproportionation has been assumed. Reduction of Hg(II)-ions, added in the buffered solution of CGA (pH 7.5), occurs rather than complexation, while the complex forming ability of CGA towards Pb(II) and Cu(II) has been observed. Stoichiometry 1?:?1 for Pb(II)-CGA, and 1?:?1 and 1?:?2 for Cu(II)-CGA has been established applying Jobs method of continuous variation on DPP data. UV-vis spectrophotometric measurements additionally confirmed the existence and stoichiometry of Cu(II) complexes.",
publisher = "Wiley-Blackwell, Malden",
journal = "Electroanalysis",
title = "A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions",
pages = "2940-2935",
number = "12",
volume = "23",
doi = "10.1002/elan.201100476"
}

Milić Komić, S., Potkonjak, N. I., Gorjanović, S. Z., Veljović-Jovanović, S., Pastor, F.,& Sužnjević, D.. (2011). A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions. in Electroanalysis
Wiley-Blackwell, Malden., 23(12), 2935-2940.
https://doi.org/10.1002/elan.201100476

Milić Komić S, Potkonjak NI, Gorjanović SZ, Veljović-Jovanović S, Pastor F, Sužnjević D. A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions. in Electroanalysis. 2011;23(12):2935-2940.
doi:10.1002/elan.201100476 .

Milić Komić, Sonja, Potkonjak, Nebojša I, Gorjanović, Stanislava Z, Veljović-Jovanović, Sonja, Pastor, Ferenc, Sužnjević, Desanka, "A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions" in Electroanalysis, 23, no. 12 (2011):2935-2940,
https://doi.org/10.1002/elan.201100476 . .