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Author Schelles, W.; de Gendt, S.; Maes, K.; Van Grieken, R.
Title The use of a secondary cathode to analyse solid non-conducting samples with direct current glow discharge mass spectrometry: potential and restrictions Type A1 Journal article
Year 1996 Publication Fresenius' journal of analytical chemistry Abbreviated Journal
Volume 355 Issue Pages 858-860
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1996UY97500020 Publication Date 2004-03-24
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0937-0633; 1432-1130 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:14654 Serial 8718
Permanent link to this record
 
 
Author Jain, R.; Yadav, R.K.; Rather, J.A.
Title Voltammetric assay of anti-vertigo drug betahistine hydrochloride in sodium lauryl sulphate Type A1 Journal article
Year 2010 Publication Colloids and surfaces: A: physicochemical and engineering aspects Abbreviated Journal
Volume 366 Issue Pages 63-67
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract Assay and electrochemical behaviour of betahistine hydrochloride in BrittonRobinsons (BR) buffer of pH range 2.512.0 at a glassy carbon electrode have been investigated. Addition of anionic surfactant (sodium lauryl sulphate) to the betahistine hydrochloride solution containing electrolyte enhanced the reduction current signal while neutral surfactant (Tween-20) and cationic surfactant cetyl trimethylammonium bromide (CTAB) showed an opposite effect. Voltammograms of betahistine hydrochloride exhibited a single wave. Based on reduction behaviour of betahistine hydrochloride, a direct square-wave voltammetric method has been developed for the assay of betahistine hydrochloride in pharmaceutical formulation. The proposed method has been validated as per ICH guideline. System and method precision in terms of RSD were 1.88% and 1.60% respectively, whereas the method accuracy was indicated by the recovery of 97.6101.9%. Reduction peak current was linear over the target concentration with correlation coefficient 0.998. The proposed method was successfully applied to the determination of betahistine hydrochloride in pharmaceutical formulation. The results were compared with those obtained by the reference high performance liquid chromatographic method. No significant differences were found between results of proposed and reference methods.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000280501800010 Publication Date 2010-05-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0927-7757 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:98689 Serial 8741
Permanent link to this record
 
 
Author Vanderborght, B.M.; Van Grieken, R.E.
Title Water analysis by spark-source mass-spectrometry after preconcentration on activated carbon Type A1 Journal article
Year 1980 Publication Talanta : the international journal of pure and applied analytical chemistry Abbreviated Journal
Volume 27 Issue 5 Pages 417-422
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract For trace analyses of environmental waters, spark-source mass-spectrometry has been combined with a preconcentration procedure involving chelation of the dissolved trace elements with oxine and subsequent adsorption of the oxinates and naturally occurring organic and colloidal metal species onto activated carbon. The activated carbon is filtered off and ashed at low temperature. The residue is dissolved, an internal standard and pure graphite are added and, after drying, the electrodes are prepared. The photographically recorded mass spectrum is evaluated by a suitable computer routine. The error of the procedure is around 30%. While this preconcentration and analysis procedure is capable of measuring about 40 elements quantitatively, in practice 1025 trace elements are determined simultaneously above the 0.1-μg/l. detection limit, as is illustrated by analyses of drinking water, surface and ground water samples. Although a sophisticated technique, SSMS can be considered for regular panoramic survey analyses.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1980JR07800006 Publication Date 2002-07-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0039-9140; 1873-3573 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:116557 Serial 8746
Permanent link to this record
 
 
Author Szalóki, I.; Osán, J.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 2006 Publication Analytical chemistry Abbreviated Journal
Volume 78 Issue 12 Pages 4069-4096
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000238252600016 Publication Date 2006-06-10
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:58857 Serial 8771
Permanent link to this record
 
 
Author Szalóki, I.; Osán, J.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 2004 Publication Analytical chemistry Abbreviated Journal
Volume 76 Issue 12 Pages 3445-3470
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000222011100014 Publication Date 2004-06-14
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:46259 Serial 8772
Permanent link to this record
 
 
Author Szalóki, I.; Török, S.B.; Injuk, J.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 2002 Publication Analytical chemistry Abbreviated Journal
Volume 74 Issue 12 Pages 2895-2918
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000176253700020 Publication Date 2002-07-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:39517 Serial 8773
Permanent link to this record
 
 
Author Szalóki, I.; Török, S.B.; Ro, C.-U.; Injuk, J.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 2000 Publication Analytical chemistry Abbreviated Journal
Volume 72 Issue 12 Pages 211-233
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000087661500018 Publication Date 2002-07-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:27850 Serial 8774
Permanent link to this record
 
 
Author Török, S.; Labar, J.; Schmeling, M.; Van Grieken, R.
Title X-ray spectrometry Type A1 Journal article
Year 1998 Publication Analytical chemistry Abbreviated Journal
Volume 70 Issue Pages 495r-517r
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000074161100020 Publication Date
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:20967 Serial 8776
Permanent link to this record
 
 
Author Török, S.B.; Labar, J.; Injuk, J.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1996 Publication Analytical chemistry Abbreviated Journal
Volume R68 Issue Pages 467-485
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:14650 Serial 8777
Permanent link to this record
 
 
Author Török, S.B.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1992 Publication Analytical chemistry Abbreviated Journal
Volume 64r Issue Pages 180-196
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1992HZ51800011 Publication Date
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:2823 Serial 8778
Permanent link to this record
 
 
Author Markowicz, A.A.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1990 Publication Analytical chemistry Abbreviated Journal
Volume 62 Issue 12 Pages 101r-113r
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date 2006-11-06
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:116527 Serial 8779
Permanent link to this record
 
 
Author Markowicz, A.A.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1988 Publication Analytical chemistry Abbreviated Journal
Volume 60 Issue 12 Pages 28r-42r
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date 2005-03-08
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:116525 Serial 8780
Permanent link to this record
 
 
Author Markowicz, A.A.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1986 Publication Analytical chemistry Abbreviated Journal
Volume 58 Issue 5 Pages 279r-294r
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date 2005-03-08
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:116523 Serial 8781
Permanent link to this record
 
 
Author Markowicz, A.A.; Van Grieken, R.E.
Title X-ray spectrometry Type A1 Journal article
Year 1984 Publication Reviews in analytical chemistry Abbreviated Journal
Volume 56 Issue Pages 241r-250r
Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0048-752x ISBN Additional Links UA library record
Impact Factor Times cited Open Access
Notes Approved (up) no
Call Number UA @ admin @ c:irua:116709 Serial 8782
Permanent link to this record
 
 
Author Wagaarachchige, J.D.; Idris, Z.; Arstad, B.; Kummamuru, N.B.; Sætre, K.A.S.; Halstensen, M.; Jens, K.-J.
Title Low-viscosity nonaqueous sulfolane–amine–methanol solvent blend for reversible CO2 capture Type A1 Journal article
Year 2022 Publication Industrial and engineering chemistry research Abbreviated Journal
Volume 61 Issue 17 Pages 5942-5951
Keywords A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
Abstract In this work, the absorption–desorption performance of CO2 in six new solvent blends of amine (diisopropylamine (DPA), 2-amino-2-methyl-1-propanol (AMP), methyldiethanolamine (MDEA), diethanolamine (DEA), diisopropanolamine (DIPA), and ethanolamine (MEA)), sulfolane, and methanol has been monitored using ATR-FTIR spectroscopy. Additionally, NMR-based species confirmation and solvent viscosity analysis were done for DPA solvent samples. The identified CO2 capture products are monomethyl carbonate (MMC), carbamate, carbonate, and bicarbonate anions in different ratios. The DPA solvent formed MMC entirely with 0.88 molCO2/molamine capture capacity, 0.48 molCO2/molamine cyclic capacity, and 3.28 mPa·s CO2-loaded solvent viscosity. MEA, DEA, DIPA, and MDEA were shown to produce a low or a negligible amount of MMC while AMP occupied an intermediate position.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos Publication Date 2022-04-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0888-5885; 1520-5045 ISBN Additional Links UA library record
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:199111 Serial 8895
Permanent link to this record
 
 
Author Ma, X.; Pavlidis, G.; Dillon, E.; Beltran, V.; Schwartz, J.J.; Thoury, M.; Borondics, F.; Sandt, C.; Kjoller, K.; Berrie, B.H.; Centrone, A.
Title Micro to nano : multiscale IR analyses reveal zinc soap heterogeneity in a 19th-century painting by Corot Type A1 Journal article
Year 2022 Publication Analytical chemistry Abbreviated Journal
Volume 94 Issue 7 Pages 3103-3110
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract Formation and aggregation of metal carboxylates (metal soaps) can degrade the appearance and integrity of oil paints, challenging efforts to conserve painted works of art. Endeavors to understand the root cause of metal soap formation have been hampered by the limited spatial resolution of Fourier transform infrared microscopy (mu-FTIR). We overcome this limitation using optical photothermal infrared spectroscopy (O-PTIR) and photothermal-induced resonance (PTIR), two novel methods that provide IR spectra with approximate to 500 and approximate to 10 nm spatial resolutions, respectively. The distribution of chemical phases in thin sections from the top layer of a 19th-century painting is investigated at multiple scales (mu-FTIR approximate to 10(2) mu m(3), O-PTIR approximate to 10(-1) mu m(3), PTIR approximate to 10(-5) mu m(3)). The paint samples analyzed here are found to be mixtures of pigments (cobalt green, lead white), cured oil, and a rich array of intermixed, small (often << 0.1 mu m(3)) zinc soap domains. We identify Zn stearate and Zn oleate crystalline soaps with characteristic narrow IR peaks (approximate to 1530-1558 cm(-1)) and a heterogeneous, disordered, water-permeable, tetrahedral zinc soap phase, with a characteristic broad peak centered at approximate to 1596 cm(-1). We show that the high signal-to-noise ratio and spatial resolution afforded by O-PTIR are ideal for identifying phase-separated (or locally concentrated) species with low average concentration, while PTIR provides an unprecedented nanoscale view of distributions and associations of species in paint. This newly accessible nanocompositional information will advance our knowledge of chemical processes in oil paint and will stimulate new art conservation practices.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000766206700011 Publication Date 2022-02-09
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-2700; 5206-882x ISBN Additional Links UA library record; WoS full record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:187380 Serial 8897
Permanent link to this record
 
 
Author Neven, L.; Barich, H.; Rutten, R.; De Wael, K.
Title Novel (photo)electrochemical analysis of aqueous industrial samples containing phenols Type A1 Journal article
Year 2022 Publication Microchemical journal Abbreviated Journal
Volume 181 Issue Pages 107778-11
Keywords A1 Journal article; Engineering sciences. Technology; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract Phenols are considered as toxic pollutants and their discharge into the environment by industries is regulated by a concentration limit. As these limits are in the low mg L−1 to µg L−1-range, sensitive methods are necessary to detect these phenols. Here, aqueous industrial phenolic samples throughout a cleaning process were analyzed by two novel electrochemical sensors. Both the photoelectrochemical (PEC) sensor and the square wave voltammetric (SWV) sensor could successfully follow the decrease of the concentration of phenols along the industrial cleaning process. The discharge sample (μg L−1) could only be analyzed by the PEC sensor and not by the SWV sensor, as the phenolic concentration was close to the LOD of the latter. With HPLC-diode array detector (DAD) measurements, classical phenols such as phenol (PHOH), hydroquinone, resorcinol and o-cresol could be identified in the industrial samples, and their presence could be linked to the electrochemical responses. At last, the performance of the PEC and SWV sensors were compared with commercial colorimetric and chemical oxygen demand (COD) test kits. This comparison demonstrated the high sensitivity of the PEC sensor in the μg L−1 concentrated phenolic samples. Together with the identification of the redox peaks through HPLC-DAD analysis, the SWV sensor can be a powerful tool in the qualitative analysis of mg L−1 concentrated phenolic samples due to its speed, simplicity and absence of laborious sample pre-treatment steps.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000837838400003 Publication Date 2022-07-20
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0026-265x; 0026-265x ISBN Additional Links UA library record; WoS full record
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:189428 Serial 8906
Permanent link to this record
 
 
Author Schram, J.; Parrilla, M.; Slosse, A.; Van Durme, F.; Åberg, J.; Björk, K.; Bijvoets, S.M.; Sap, S.; Heerschop, M.W.J.; De Wael, K.
Title Paraformaldehyde-coated electrochemical sensor for improved on-site detection of amphetamine in street samples Type A1 Journal article
Year 2022 Publication Microchemical journal Abbreviated Journal
Volume 179 Issue Pages 107518-107519
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract The increasing illicit production, distribution and abuse of amphetamine (AMP) poses a challenge for law enforcement worldwide. To effectively combat this issue, fast and portable tools for the on-site screening of suspicious samples are required. Electrochemical profile (EP)-based sensing of illicit drugs has proven to be a viable option for this purpose as it allows rapid voltammetric measurements via the use of disposable and low-cost graphite screen-printed electrodes (SPEs). In this work, a highly practical paraformaldehyde (PFA)-coated sensor, which unlocks the detectability of primary amines through derivatization, is developed for the on-site detection of AMP in seized drug samples. A potential interval was defined at the sole AMP peak (which is used for identification of the target analyte) to account for potential shifts due to fluctuations in concentration and temperature, which are relevant factors for on-site use. Importantly, it was found that AMP detection was not hindered by the presence of common diluents and adulterants such as caffeine, even when present in high amounts. When inter-drug differentiation is desired, a simultaneous second test with the same solution on an unmodified electrode is introduced to provide the required additional electrochemical information. Finally, the concept was validated by analyzing 30 seized AMP samples (reaching a sensitivity of 96.7 %) and comparing its performance to that of commercially available Raman and Fourier Transform Infrared (FTIR) devices.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000809675500010 Publication Date 2022-04-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0026-265x; 0026-265x ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:188454 Serial 8910
Permanent link to this record
 
 
Author Parrilla, M.; Slosse, A.; Van Echelpoel, R.; Montiel, F.N.; Langley, A.R.; Van Durme, F.; De Wael, K.
Title Rapid on-site detection of illicit drugs in smuggled samples with a portable electrochemical device Type A1 Journal article
Year 2022 Publication Chemosensors Abbreviated Journal
Volume 10 Issue 3 Pages 108-116
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract The smuggling of illicit drugs urges the development of new tools for rapid on-site identification in cargos. Current methods rely on presumptive color tests and portable spectroscopic techniques. However, these methods sometimes exhibit inaccurate results due to commonly used cutting agents, the colorful nature of the sample or because the drugs are smuggled in common goods. Interestingly, electrochemical sensors can deal with these specific problems. Herein, an electrochemical device is presented that uses affordable screen-printed electrodes for the electrochemical profiling of several illicit drugs by square-wave voltammetry (SWV). The identification of the illicit compound is based on the oxidation potential of the analyte. Hence, a library of electrochemical profiles is built upon the analysis of illicit drugs and common cutting agents. This library allows the design of a tailor-made script that enables the identification of each drug through a user-friendly interface (laptop or mobile phone). Importantly, the electrochemical test is compared by analyzing 48 confiscated samples with other portable devices based on Raman and FTIR spectroscopy as well as a laboratory standard method (i.e., gas chromatography-mass spectrometry). Overall, the electrochemical results, obtained through the analysis of different samples from confiscated cargos at an end-user site, present a promising alternative to current methods, offering low-cost and rapid testing in the field.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000775813500001 Publication Date 2022-03-11
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2227-9040 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:187766 Serial 8920
Permanent link to this record
 
 
Author Ortiz-Aguayo, D.; Ceto, X.; De Wael, K.; del Valle, M.
Title Resolution of opiate illicit drugs signals in the presence of some cutting agents with use of a voltammetric sensor array and machine learning strategies Type A1 Journal article
Year 2022 Publication Sensors and actuators : B : chemical Abbreviated Journal
Volume 357 Issue Pages 131345
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract In the present work, the resolution and quantification of mixtures of different opiate compounds in the presence of common cutting agents using an electronic tongue (ET) is evaluated. More specifically, ternary mixtures of heroin, morphine and codeine were resolved in the presence of caffeine and paracetamol. To this aim, an array of three carbon screen-printed electrodes were modified with different ink-like solutions of graphite, cobalt (II) phthalocyanine and palladium, and their responses towards the different drugs were characterized by means of square wave voltammetry (SWV). Developed sensors showed a good performance with good linearity at the mu M level, LODs between 1.8 and 5.3 mu M for the 3 actual drugs, and relative standard deviation (RSD) ca. 2% for over 50 consecutive measurements. Next, a quantitative model that allowed the identification and quantification of the individual substances from the overlapped voltammograms was built using partial least squares regression (PLS) as the modeling tool. With this approach, quantification of the different drugs was achieved at the mu M level, with a total normalized root mean square error (NRMSE) of 0.084 for the test subset.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000745113900003 Publication Date 2021-12-31
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0925-4005 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:185446 Serial 8922
Permanent link to this record
 
 
Author Neven, L.; Barich, H.; Pelmuş, M.; Gorun, S.M.; De Wael, K.
Title The role of singlet oxygen, superoxide, hydroxide, and hydrogen peroxide in the photoelectrochemical response of phenols at a supported highly fluorinated zinc phthalocyanine Type A1 Journal article
Year 2022 Publication ChemElectroChem Abbreviated Journal
Volume 9 Issue 6 Pages e202200108-10
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract Photoelectrochemical (PEC) sensing of phenolic compounds using singlet oxygen (1O2)-generating photocatalysts has emerged as a powerful detection tool. However, it is currently not known how experimental parameters, such as pH and applied potential, influence the generation of reactive oxygen species (ROS) and their photocurrents. In this article, the PEC response was studied over the 6 to 10 pH range using a rotating (ring) disk (R(R)DE) set-up in combination with quenchers, to identify the ROS formed upon illumination of a supported photosensitizer, F64PcZn. The photocurrents magnitude depended on the applied potential and the pH of the buffer solution. The anodic responses were caused by the oxidation of O2.−, generated due to the quenching of 1O2 with −OH and the reaction of 3O2 with [F64Pc(3-)Zn]. The cathodic responses were assigned to the reduction of 1O2 and O2.−, yielding H2O2. These insights may benefit 1O2 – based PEC sensing applications.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000773947300003 Publication Date 2022-02-23
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2196-0216 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:187524 Serial 8926
Permanent link to this record
 
 
Author Filez, M.; Feng, J.-Y.; Minjauw, M.M.; Solano, E.; Poonkottil, N.; Van Daele, M.; Ramachandran, R.K.; Li, C.; Bals, S.; Poelman, H.; Detavernier, C.; Dendooven, J.; Filez, M.; Minjauw, M.; Solano, E.; Poonkottil, N.; Li, C.; Bals, S.; Dendooven, J.
Title Shuffling atomic layer deposition gas sequences to modulate bimetallic thin films and nanoparticle properties Type A1 Journal article
Year 2022 Publication Chemistry of materials Abbreviated Journal
Volume Issue Pages
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract Atomic layer deposition (ALD) typically employs metal precursors and co-reactant pulses to deposit thin films in a layer-by-layer fashion. While conventional ABAB-type ALD sequences implement only two functionalities, namely, a metal source and ligand exchange agent, additional functionalities have emerged, including etching and reduction agents. Herein, we construct gas-phase sequences-coined as ALD+-with complex-ities reaching beyond the classic ABAB-type ALD by freely combining multiple functionalities within irregular pulse schemes, e.g., ABCADC. The possibilities of such combinations are explored as a smart strategy to tailor bimetallic thin films and nanoparticle (NP) properties. By doing so, we demonstrate that bimetallic thin films can be tailored with target thickness and through the full compositional range, while the morphology can be flexibly modulated from thin films to NPs by shuI 1ing the pulse sequence. These complex pulse schemes are expected to be broadly applicable but are here explored for Pd-Ru bimetallic thin films and NPs.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000823205700001 Publication Date 2022-06-29
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0897-4756; 1520-5002 ISBN Additional Links UA library record; WoS full record
Impact Factor Times cited 2 Open Access OpenAccess
Notes This research was funded by the Research Foundation, Flanders (FWO) , and the Special Research Fund BOF of Ghent University (GOA 01G01019) . M.F. and M.M.M. acknowledge the FWO for a postdoctoral research fellowship (1280621N) . N.P. acknowledges the European Union's Horizon 2020 research and innovation program under the Marie Skiodowska-Curie grant agreement no. 765378. For the GISAXS measurements, the author s received funding from the European Community's Transnational Access Program CALIPSOplus. E.S. acknowledges the Spanish project RTI2018-093996-B-C32 MICINN/FEDER funds. Air Liquide is acknowledged for supporting this research. The authors acknowledge SOLEIL for the provision of synchrotron radiation facilities and would like to thank Dr. Alessandro Coati for assistance in using beamline SiXS. The GIWAXS experiments were performed at NCD-SWEET beamline at ALBA Synchrotron with the collaboration of ALBA staff . Approved (up) no
Call Number UA @ admin @ c:irua:189541 Serial 8928
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Author Parrilla, M.; Detamornrat, U.; Domínguez-Robles, J.; Donnelly, R.F.; De Wael, K.
Title Wearable hollow microneedle sensing patches for the transdermal electrochemical monitoring of glucose Type A1 Journal article
Year 2022 Publication Talanta : the international journal of pure and applied analytical chemistry Abbreviated Journal
Volume 249 Issue Pages 123695-123699
Keywords A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Abstract According to the World Health Organization, about 422 million people worldwide have diabetes, with 1.5 million deaths directly attributed each year. Therefore, there is still a need to effectively monitor glucose in diabetic patients for proper management. Recently, wearable patches based on microneedle (MN) sensors provide minimally invasive analysis of glucose through the interstitial fluid (ISF) while exhibiting excellent correlation with blood glucose. Despite many advances in wearable electrochemical sensors, long-term stability and continuous monitoring remain unsolved challenges. Herein, we present a highly stable electrochemical biosensor based on a redox mediator bilayer consisting of Prussian blue and iron-nickel hexacyanoferrate to increase the long-term stability of the readout coupled with a hollow MN array as a sampling unit for ISF uptake. First, the enzymatic biosensor is developed by using affordable screen-printed electrodes (SPE) and optimized for long-term stability fitting the physiological range of glucose in ISF (i.e., 2.5–22.5 mM). In parallel, the MN array is assessed for minimally invasive piercing of the skin. Subsequently, the biosensor is integrated with the MN array leaving a microfluidic spacer that works as the electrochemical cell. Interestingly, a microfluidic channel connects the cell with an external syringe to actively and rapidly withdraw ISF toward the cell. Finally, the robust MN sensing patch is characterized during in vitro and ex vivo tests. Overall, affordable wearable MN-based patches for the continuous monitoring of glucose in ISF are providing an advent in wearable devices for rapid and life-threatening decision-making processes.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000826441800002 Publication Date 2022-06-16
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0039-9140; 1873-3573 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited Open Access OpenAccess
Notes Approved (up) no
Call Number UA @ admin @ c:irua:188955 Serial 8955
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Author Huve, M.; Martin, C.; Maignan, A.; Michel, C.; Van Tendeloo, G.; Hervieu, M.; Raveau, B.
Title A new cuprate with mercury bilayers : the “2222” oxide Hg2-xMxBa2Pr2Cu2O10-\delta (M= Cu,Pr) Type A1 Journal article
Year 1995 Publication Journal of solid state chemistry Abbreviated Journal J Solid State Chem
Volume 114 Issue 1 Pages 230-235
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract A ''2222'' cuprate with mercury bilayers (Hg1.5Cu0.2Pr0.3)Ba2Pr2Cu2O10-delta, has been synthesized for the first time. It crystallizes in the P4/nmm space group with a = 3.9072(1) Angstrom and c = 17.219(1) Angstrom. The powder XRD and HREM studies of this new cuprate show that its structure consists of an intergrowth of double pyramidal (oxygen-deficient perovskite) copper layers, with double fluorite-type layers and distorted triple rock salt layers (mercury bilayers). The structure of this phase can be deduced from that of the ''2212'' mercury cuprate (Hg1.5Cu0.2Pr0.3)Ba2PrCu2O8-delta by the introduction of one additional [PrO2]infinity fluorite layer. The regular stacking of the metallic layer and the uniform cationic distribution in the mercury bilayers are remarkable features of this cuprate. The stabilization of the mercury bilayers by praseodymium and the absence of superconductivity are discussed. (C) 1995 Academic Press, Inc.
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos A1995QA17000033 Publication Date 2002-10-07
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-4596; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.133 Times cited 6 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:104448 Serial 2310
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Author Goldoni, G.; Schweigert, V.; Peeters, F.M.
Title Stability and dynamical properties of a double-layer Wigner crystal in two dimensions Type A1 Journal article
Year 1996 Publication Surface science : a journal devoted to the physics and chemistry of interfaces Abbreviated Journal Surf Sci
Volume 361/362 Issue Pages 163-166
Keywords A1 Journal article; Condensed Matter Theory (CMT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1996UZ03300041 Publication Date 2002-07-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0039-6028; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.925 Times cited 4 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:15814 Serial 3118
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Author Slanina, Z.; Martin, J.M.L.; François, J.P.; Gijbels, R.
Title The structure, energetics, and harmonic vibrations of B3N Type A1 Journal article
Year 1993 Publication Chemical physics letters Abbreviated Journal Chem Phys Lett
Volume 201 Issue Pages 54-58
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1993KF37900010 Publication Date 2002-07-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0009-2614; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.897 Times cited 20 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:6145 Serial 3302
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Author Verheijen, M.A.; Meekes, H.; Meijer, G.; Bennema, P.; de Boer, J.L.; van Smaalen, S.; Van Tendeloo, G.; Amelinckx, S.; Muto, S.; van Landuyt, J.
Title The structure of different phases of pure C70 crystals Type A1 Journal article
Year 1992 Publication Chemical physics Abbreviated Journal Chem Phys
Volume 166 Issue Pages 287-297
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1992JQ46300026 Publication Date 2002-07-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0301-0104; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.652 Times cited 168 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:4104 Serial 3309
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Author Martin, J.M.L.; El-Yazal, J.; François, J.P.; Gijbels, R.
Title Structures and thermochemistry of B3N3 and B4N4 Type A1 Journal article
Year 1995 Publication Chemical physics letters Abbreviated Journal Chem Phys Lett
Volume 232 Issue Pages 289-294
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1995QC33700018 Publication Date 2002-07-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0009-2614; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.897 Times cited 35 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:12278 Serial 3320
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Author Ivanov, V.; Nagy, J.B.; Lambin, P.; Lucas, A.; Zhang, X.B.; Zhang, X.F.; Bernaerts, D.; Van Tendeloo, G.; Amelinckx, S.; van Landuyt, J.
Title The study of carbon nanotubes produced by catalytic method Type A1 Journal article
Year 1994 Publication Chemical physics letters Abbreviated Journal Chem Phys Lett
Volume 223 Issue Pages 329-335
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1994NT08000011 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0009-2614 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.897 Times cited 405 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:10002 Serial 3326
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Author Veldeman, E.; Van 't dack, L.; Gijbels, R.; Pentcheva, E.
Title Sulfur species and associated trace elements in south-west Bulgarian thermal waters Type A1 Journal article
Year 1991 Publication Applied geochemistry Abbreviated Journal Appl Geochem
Volume 6 Issue Pages 49-62
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Oxford Editor
Language Wos A1991EU47000004 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0883-2927 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.268 Times cited 7 Open Access
Notes Approved (up) PHYSICS, APPLIED 28/145 Q1 #
Call Number UA @ lucian @ c:irua:706 Serial 3348
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