dc.contributor.author | Kolokassidou, K. | en |
dc.contributor.author | Szymczak, W. | en |
dc.contributor.author | Wolf, M. | en |
dc.contributor.author | Obermeier, C. | en |
dc.contributor.author | Buckau, G. | en |
dc.contributor.author | Pashalidis, Ioannis | en |
dc.creator | Kolokassidou, K. | en |
dc.creator | Szymczak, W. | en |
dc.creator | Wolf, M. | en |
dc.creator | Obermeier, C. | en |
dc.creator | Buckau, G. | en |
dc.creator | Pashalidis, Ioannis | en |
dc.date.accessioned | 2019-11-21T06:20:01Z | |
dc.date.available | 2019-11-21T06:20:01Z | |
dc.date.issued | 2009 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55695 | |
dc.description.abstract | Disposed olive cake generates hydrophilic components that can be mobilized in the aquatic environment. This paper deals with the characterization of such components, isolated by alkaline extraction. It is shown that these substances possess properties very much resembling humic acid, including a substantial inventory of proton exchanging groups. Extraction and purification of the hydrophilic components from the disposed olive cake was performed by the standard approach for isolation of humic acids from solid sources, i.e. alternating alkaline dissolution and acid flocculation, leaving the purified extract in the protonated form. The purified sample was characterized by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), Fourier Transform Infra Red Spectroscopy (FTIR), UV-vis, Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) and Asymmetrical Flow Field-Flow Fractionation (AFFFF). The complex formation properties were investigated by potentiometry using Cu(II) ion selective electrode under atmospheric conditions at I = 0.1 M NaClO 4 (aqueous solution) and pH 6. The formation constant for the CuHA complex is found to be log β = 5.3 ± 0.4 which is close to the corresponding value (log β = 5.2 ± 0.4) obtained from similar investigations with the commercially available Aldrich humic acid (this study) and corresponding published values for various humic acids. Both, structural properties and complex formation data show that the olive cake extract has considerable similarities with humic acids from different sources, pointing towards potential similarities in environmental behavior and impact. © 2008 Elsevier B.V. All rights reserved. | en |
dc.source | Journal of hazardous materials | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-62649122782&doi=10.1016%2fj.jhazmat.2008.08.016&partnerID=40&md5=0e17585ba8604c165801d337dcbefa49 | |
dc.subject | Physico-chemical properties | en |
dc.subject | Characterization | en |
dc.subject | Hydrophilicity | en |
dc.subject | Complex formations | en |
dc.subject | copper | en |
dc.subject | Aqueous solutions | en |
dc.subject | Fourier transform infrared spectroscopy | en |
dc.subject | Dissolution | en |
dc.subject | Purification | en |
dc.subject | plasma | en |
dc.subject | Emission spectroscopy | en |
dc.subject | Biological materials | en |
dc.subject | Electrochemical Techniques | en |
dc.subject | Spectrometry | en |
dc.subject | Water Pollutants | en |
dc.subject | Plant Extracts | en |
dc.subject | Olea | en |
dc.subject | Inductively coupled plasma | en |
dc.subject | Humic acid | en |
dc.subject | Organic acids | en |
dc.subject | Metal refining | en |
dc.subject | Fourier transforms | en |
dc.subject | High performance liquid chromatography | en |
dc.subject | Atmospheric conditions | en |
dc.subject | Formation constants | en |
dc.subject | physicochemical property | en |
dc.subject | Potentiometry | en |
dc.subject | Alkaline dissolutions | en |
dc.subject | Alkaline extractions | en |
dc.subject | Aquatic environments | en |
dc.subject | Asymmetrical flow field-flow fractionations | en |
dc.subject | complexation | en |
dc.subject | Copper complexation | en |
dc.subject | Environmental behaviors | en |
dc.subject | Enzyme immobilization | en |
dc.subject | extraction method | en |
dc.subject | Flocculation | en |
dc.subject | Fourier transform infra-red spectroscopies | en |
dc.subject | Fractionation | en |
dc.subject | Humic Substances | en |
dc.subject | Hydrophilic components | en |
dc.subject | Hydrophilic extracts | en |
dc.subject | Inductively coupled plasma-optical-emission spectrometries | en |
dc.subject | Ion selective electrodes | en |
dc.subject | Olive cake | en |
dc.subject | Optical emission spectroscopy | en |
dc.subject | Protonated | en |
dc.subject | Secondary ion mass spectrometry | en |
dc.subject | Solid sources | en |
dc.subject | Spectrometers | en |
dc.subject | Static Electricity | en |
dc.subject | Time-of-flight secondary ion mass spectrometries | en |
dc.title | Hydrophilic olive cake extracts: Characterization by physicochemical properties and Cu(II) complexation | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/j.jhazmat.2008.08.016 | |
dc.description.volume | 164 | |
dc.description.issue | 2-3 | |
dc.description.startingpage | 442 | |
dc.description.endingpage | 447 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :11</p> | en |
dc.source.abbreviation | J.Hazard.Mater. | en |
dc.contributor.orcid | Pashalidis, Ioannis [0000-0002-7587-6395] | |
dc.gnosis.orcid | 0000-0002-7587-6395 | |