dc.contributor.author | Nicolaou, I. N. | en |
dc.contributor.author | Kapnissi‐Christodoulou, Constantina P. | en |
dc.creator | Nicolaou, I. N. | en |
dc.creator | Kapnissi‐Christodoulou, Constantina P. | en |
dc.date.accessioned | 2019-11-21T06:21:46Z | |
dc.date.available | 2019-11-21T06:21:46Z | |
dc.date.issued | 2010 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55915 | |
dc.description.abstract | A simple CZE method has been developed for the simultaneous determination of eight polyphenolic compounds. The influence of several experimental conditions such as buffer (concentration and pH) and temperature were studied. Optimum separation was achieved in less than 25 min by using a BGE of 50 mM Na2B4O7 and 10 mM Na2HPO4 at pH 9.6, a temperature of 25°C and an applied voltage of 25 kV. Good linearities for all eight analytes were obtained with correlation coefficients higher than 0.99. The LODs were between 0.03 and 5.05 µg/mL and the RSD values of the migration times were found to be less than 1%. The optimal separation conditions were then used for the identification and the quantitation of polyphenolic compounds in Cypriot wine samples using six different sample preparation procedures. In particular, two direct injection methods (without any extraction step), three different liquid-liquid extraction procedures and an SPE procedure were examined. These sample pre-treatment methods were also compared in order to determine the one that is the most effective, in regard to analyte recovery, time, difficulty, and reproducibility. Liquid-liquid extraction using diethyl ether as the organic solvent proved to be the most effective. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | en |
dc.source | Electrophoresis | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-78650007844&doi=10.1002%2felps.201000316&partnerID=40&md5=bcd5b6cf13b271cc5a22e65c461f37e5 | |
dc.subject | article | en |
dc.subject | controlled study | en |
dc.subject | quantitative analysis | en |
dc.subject | intermethod comparison | en |
dc.subject | Reproducibility of Results | en |
dc.subject | sensitivity and specificity | en |
dc.subject | Linear Models | en |
dc.subject | reproducibility | en |
dc.subject | Temperature | en |
dc.subject | chemical structure | en |
dc.subject | concentration (parameters) | en |
dc.subject | pH | en |
dc.subject | Hydrogen-Ion Concentration | en |
dc.subject | temperature sensitivity | en |
dc.subject | process optimization | en |
dc.subject | buffer | en |
dc.subject | quercetin | en |
dc.subject | resveratrol | en |
dc.subject | apigenin | en |
dc.subject | catechin | en |
dc.subject | kaempferol | en |
dc.subject | myricetin | en |
dc.subject | epicatechin | en |
dc.subject | polyphenol derivative | en |
dc.subject | solid phase extraction | en |
dc.subject | food analysis | en |
dc.subject | Sample preparation | en |
dc.subject | liquid liquid extraction | en |
dc.subject | Electrophoresis, Capillary | en |
dc.subject | electric potential | en |
dc.subject | capillary zone electrophoresis | en |
dc.subject | CE | en |
dc.subject | borate sodium | en |
dc.subject | Borates | en |
dc.subject | Chemical Fractionation | en |
dc.subject | disodium hydrogen phosphate | en |
dc.subject | ether | en |
dc.subject | Flavonoids | en |
dc.subject | naringenin | en |
dc.subject | Polyphenolic compounds | en |
dc.subject | Stilbenes | en |
dc.subject | Wine | en |
dc.title | Analysis of polyphenols using capillary zone electrophoresis - Determination of the most effective wine sample pre-treatment method | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1002/elps.201000316 | |
dc.description.volume | 31 | |
dc.description.issue | 23-24 | |
dc.description.startingpage | 3895 | |
dc.description.endingpage | 3902 | |
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 :14</p> | en |
dc.source.abbreviation | Electrophoresis | en |
dc.contributor.orcid | Kapnissi‐Christodoulou, Constantina P. [0000-0003-3755-1052] | |
dc.gnosis.orcid | 0000-0003-3755-1052 | |