Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Jeno Fekete"'
Autor:
Jeno Fekete, Agnes Meszaros
Publikováno v:
Food Analytical Methods. 8:678-684
The study describes the development of a method for determination of ethylenediaminetetraacetic acid (EDTA) in various biological matrices after extraction as sample preparation using liquid chromatography coupled with tandem mass spectrometry (LC-MS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42e35fefea98f4e7a7f680b8620711a5
https://doi.org/10.1007/s12161-014-9946-z
https://doi.org/10.1007/s12161-014-9946-z
Autor:
Szabolcs Fekete, Jeno Fekete, Katalin Békési, Virender K. Sharma, Ádám Tölgyesi, Róbert Berky
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 36:1105-1125
This paper presents new reversed phase liquid chromatographic methods (HPLC-FLD and LC-MS/MS) for the quantification of sulfonamides in spiked and incurred honey samples. The sample preparation was optimized using Oasis HLB (hydrophilic–lipophilic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a2425d280c98b6b2e8b2f79911bffeb
https://doi.org/10.1080/10826076.2012.685911
https://doi.org/10.1080/10826076.2012.685911
Publikováno v:
Journal of Chromatography. A, Vol. 1252 (2012) pp. 90-103
In the present contribution, columns packed with fully porous widepore 1.7 μm particles (Acquity BEH300) and widepore core–shell 3.6 μm particles (Aeris WP) were evaluated for the separation of model and therapeutic proteins of varying sizes, hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78088e8153b6fb2ca22a940159b05a79
https://doi.org/10.1016/j.chroma.2012.06.066
https://doi.org/10.1016/j.chroma.2012.06.066
Simultaneous displacement of a nitro group during coupling of diazotized o-nitroaniline with phenols
Autor:
Pál Kolonits, Jeno Fekete, Mercedesz Törincsi, Renáta Farkas, Lajos Novák, Oscar Jimenez Alonso
Publikováno v:
Open Chemistry. 8:300-307
During the diazo-coupling reaction, nucleophilic displacement of a nitro group was also observed. This was the main reaction (1→7) when the starting amine bore either a chlorine or methoxy group at the para position (1b–c). The newly prepared com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea40804b15409b6b3967df52e09e9c6a
https://doi.org/10.2478/s11532-009-0150-8
https://doi.org/10.2478/s11532-009-0150-8
Autor:
Virender K. Sharma, Ria A. Yngard, Jeno Fekete, Ajay K. Ray, Dmitriy Golovko, George A. K. Anquandah, Hynook Kim, Karel Bouzek
Publikováno v:
Journal of Environmental Science and Health, Part A. 44:423-442
This paper reviews the current knowledge on the occurrence, biodegradation, and photooxidation of nonylphenol (NP), octylphenol (OP), and bisphenol-A (BPA) in aquatic environment. Generally, the concentrations determined were 0.006-32.8, < 0.001-1.44
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d8d82123944bc1b3d009a672eabc5ac
https://doi.org/10.1080/10934520902719704
https://doi.org/10.1080/10934520902719704
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 31:240-249
A study was conducted to demonstrate the potential use of selected F‐PAHs, 1‐fluoronaphthalene (F‐Np), 1‐fluoropyrene (F‐Py), and 9‐fluorobenzo(k)fluoranthene (F‐BkF1), as surrogate standards (SSs) in the analysis of PAHs in surface and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::254e5c6aa47c82460f4df49a3e7fec05
https://doi.org/10.1080/10826070701738969
https://doi.org/10.1080/10826070701738969
Publikováno v:
Journal of Environmental Science and Health, Part A. 42:231-240
Concentrations of polycyclic aromatic hydrocarbons (PAHs) in the surface waters of Ráckevei-Soroksári Danube (RSD) branch, Hungary were determined at ten sites during eight sampling events from October 2002-April 2004. Low and medium molecular weig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4c62ee2753f95d215cde015d54c2230
https://doi.org/10.1080/10934520601131318
https://doi.org/10.1080/10934520601131318
Publikováno v:
Journal of Environmental Science and Health, Part A. 40:1679-1688
Concentrations of 4-octylphenol (OP) and 4-nonylphenol (NP) in surface water samples were determined at 10 sites during eight samplings (October 2002 to April 2004) at Ráckevei-Soroksári Danube (RSD) branch, Hungary. OP levels in surface waters ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::775cb9645df1a102399339fd4ea1a5da
https://doi.org/10.1081/-ese-200067983
https://doi.org/10.1081/-ese-200067983
Publikováno v:
Synthesis. 2000:809-812
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10758f7cbf14dd11501d6bc92446476e
https://doi.org/10.1055/s-2000-6278
https://doi.org/10.1055/s-2000-6278
Autor:
Peter Kovacs, Lajos Novák, Éva Szabó, Michel Hanania, Pál Kolonits, Jeno Fekete, Csaba Szántay
Publikováno v:
Synthesis. 1997:909-916
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b945118285bd1b2464a93fdedad03eb
https://doi.org/10.1055/s-1997-1288
https://doi.org/10.1055/s-1997-1288