Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Ciprian Radovan"'
Voltammetric Detection of Urea on an Ag-Modified Zeolite-Expanded Graphite-Epoxy Composite Electrode
Autor:
Joop Schoonman, Stephen Picken, Georgeta Burtica, Adriana Bebeselea, Plamen Malchev, Ciprian Radovan, Aniela Pop, Florica Manea
Publikováno v:
Sensors, Vol 8, Iss 9, Pp 5806-5819 (2008)
In this paper, a modified expanded graphite composite electrode based on natural zeolitic volcanic tuff modified with silver (EG-Ag-Z-Epoxy) was developed. Cyclic voltammetry measurements revealed a reasonably fast electron transfer and a good stabil
Externí odkaz:
https://doaj.org/article/221aa31e74c5446bbf8cf0d4fbafaff6
Publikováno v:
Sensors, Vol 8, Iss 8, Pp 4560-4581 (2008)
TAA is a harmful, presumptive pollutant in tap waters and waste waters. Several alternatives have been tested as new possibilities for the anodic determination of TAA in aqueous solutions, simulated waste waters and tap water. The electrochemical beh
Externí odkaz:
https://doaj.org/article/9226cf074bfc4b798ba7a6264e3c03dc
Autor:
Vasile Ostafe, Codruta Cofan, Manuela Mincea, Florica Manea, Dan Cinghită, Ciprian Radovan
Publikováno v:
Sensors, Vol 8, Iss 7, Pp 4330-4349 (2008)
In this paper, the electrochemical behaviour of several parabens preservatives, i.e. esters of p-hydroxybenzoic acid, methyl-, ethyl- and propyl-4-hydroxybenzoates as methyl-, ethyl- and propyl-parabens (MB, EB, and PB), has been investigated at a co
Externí odkaz:
https://doaj.org/article/69a17913945f44a5be71145f15f1627b
Autor:
Ciprian Radovan, Codruţa Cofan
Publikováno v:
Sensors, Vol 8, Iss 6, Pp 3952-3969 (2008)
Cyclic voltammetry (CV) and chronoamperometry (CA) have been used to sense and determine simultaneously L-ascorbic acid (AA) and acetaminophen (AC) at a boron-doped diamond electrode (BDDE) in a Britton-Robinson buffer solution. The calibration plots
Externí odkaz:
https://doaj.org/article/0e976cc3e3764ae0bf168b8f95a148fb
Autor:
Joop Schoonman, Stephen Picken, Plamen Malchev, Georgeta Burtica, Aniela Pop, Ciprian Radovan, Florica Manea, Ioana Corb
Publikováno v:
Sensors, Vol 7, Iss 11, Pp 2626-2635 (2007)
Electrodes based on carbon, i.e., expanded graphite (20%, wt.)-epoxy composite(20EG-Epoxy) and expanded graphite (20%, wt.)-polystyrene composite (20EG-PS) havebeen prepared, characterized using scanning electron microscopy (SEM) and cyclicvoltammetr
Externí odkaz:
https://doaj.org/article/f00c3625a81c4340a925569853447507
Autor:
Joop Schoonman, Stephen Picken, Plamen Malchev, Georgeta Burtica, Aniela Pop, Ioana Corb, Ciprian Radovan, Florica Manea
Publikováno v:
Sensors, Vol 7, Iss 4, Pp 615-627 (2007)
An exfoliated graphite-polystyrene composite electrode was evaluated as analternative electrode in the oxidation and the determination of oxalic acid in 0.1 M Na2SO4supporting electrolyte. Using CV, LSV, CA procedures, linear dependences I vs. C were
Externí odkaz:
https://doaj.org/article/2b458cfc18124d1990f6349ea3d6902b
Autor:
Codruţa Cofan, Ciprian Radovan
Publikováno v:
International Journal of Electrochemistry, Vol 2011 (2011)
Differential pulse voltammetry (DPV) and chronoamperometry (CA) were used to detect and determine acetylsalicylic acid (ASA) at a mildly oxidized boron-doped diamond (BDD) electrode in a neutral sodium sulphate solution as supporting electrolyte. ASA
Externí odkaz:
https://doaj.org/article/9ae0f281c06c440f9f59e5c5a67fc701
Publikováno v:
Environmental Engineering and Management Journal. 11:427-434
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3496c5dc03eb520c08d4da13124ea549
https://doi.org/10.30638/eemj.2012.053
https://doi.org/10.30638/eemj.2012.053
Publikováno v:
Water Supply. 11:85-95
In this study, the electrooxidation treatment method using boron-doped diamond (BDD) electrodes was investigated for the degradation of humic acid (HA) following absorbance at 254 nm (A254), color (A436) and total organic carbon (TOC) analysis. Also,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd96809f47c342c1a23181471050261b
https://doi.org/10.2166/ws.2011.013
https://doi.org/10.2166/ws.2011.013
Publikováno v:
Desalination. 260:51-56
In this work, the photocatalytically-assisted electrochemical oxidation for the degradation of 276 mg dm − 3 p-aminophenol (4-AP) from water with boron-doped diamond (BDD) anodes using TiO 2 -supported zeolite (TiO 2 -Z) was investigated. The syner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ac632c1d0168f666e6bf8777b29064c
https://doi.org/10.1016/j.desal.2010.04.068
https://doi.org/10.1016/j.desal.2010.04.068