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“Validated portable device for the qualitative and quantitative electrochemical detection of MDMA ready for on-site use”. Van Echelpoel R, Parrilla M, Sleegers N, Thiruvottriyur Shanmugam S, van Nuijs ALN, Slosse A, Van Durme F, De Wael K, Microchemical journal 190, 108693 (2023). http://doi.org/10.1016/J.MICROC.2023.108693
Abstract: Identifying and quantifying 3,4-methylenedioxymethamphetamine (MDMA) on-site in suspected illicit drug samples, whether it be at recreational settings or manufacturing sites, is a major challenge for law enforcement agencies (LEAs). Various analytical techniques exist to fulfil this goal, e.g. colourimetry and portable spectroscopic techniques, each having its specific limitations (e.g. low accuracy, fluorescence, no quantification) and strengths (e.g. fast, easy to use). In this work, for the first time, an electrochemical MDMA sensor is presented to become a detection tool that can realistically be used on-site. More specifically, the use of a single buffer solution and an unmodified screen-printed electrode, along with the integration of a data analysis algorithm and mobile application permits the straightforward on-site identification and quantification of MDMA in suspicious samples. Multiple studies investigating different parameters, including pH, concentration, reproducibility, temperature and binary mixture analyses, were executed. To fully understand all the occurring redox processes, liquid chromatography coupled with high-resolution mass spectrometry analysis of partially electrolyzed MDMA samples was performed unravelling oxidation of the methylenedioxy group. Validation of the methodology was executed on 15 MDMA street samples analysed by gas chromatography coupled with mass spectrometry and compared with the performance of a commercial portable Raman and Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR) device. The novel methodology outperformed the spectroscopic techniques, correctly identifying all 15 street samples. Additionally, the electrochemical sensor predicted the purity of the tablets with a mean absolute error of 2.3%. Overall, this new, electrochemical detection strategy provides LEAs the rapid, low-cost, on-site detection and quantification of MDMA in suspicious samples, without requiring specialized training.
Keywords: A1 Journal article; Engineering sciences. Technology; Toxicological Centre; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
Impact Factor: 4.8
DOI: 10.1016/J.MICROC.2023.108693
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“Electrochemical methods for on-site multidrug detection at festivals”. Van Echelpoel R, Schram J, Parrilla M, Daems D, Slosse A, Van Durme F, De Wael K, Sensors &, Diagnostics 1, 793 (2022). http://doi.org/10.1039/D2SD00043A
Abstract: Two electrochemical methodologies, i.e. flowchart and dual-sensor, were developed to aid law enforcement present at festivals to obtain a rapid indication of the presence of four illicit drugs in suspicious samples encountered.
Keywords: A1 Journal article; Engineering sciences. Technology; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab)
DOI: 10.1039/D2SD00043A
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“Spectrum evaluation”. van Espen P, Janssens K (1992).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
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“AXIL-PC, software for the analysis of complex-x-ray spectra”. van Espen P, Janssens K, Nobels J, Chemometrics and intelligent laboratory systems 1, 109 (1986). http://doi.org/10.1016/0169-7439(86)80031-4
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
DOI: 10.1016/0169-7439(86)80031-4
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“Effective sample weight from scatter peaks in energy-dispersive x-ray fluorescence”. van Espen P, Van 't dack L, Adams F, Van Grieken R, Analytical chemistry 51, 961 (1979). http://doi.org/10.1021/AC50043A042
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
DOI: 10.1021/AC50043A042
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Van Eynde E (2015) Biotemplate silica-titania diatoms for gas phase photocatalysis. 184 p
Keywords: Doctoral thesis; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Diatom silica-titania materials for photocatalytic air purification”. Van Eynde E, Lenaerts S page 240 (2012).
Keywords: H3 Book chapter; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Diatom silica-titania materials for photocatalytic air purification”. Van Eynde E, Tytgat T, Smits M, Verbruggen S, Hauchecorne B, Blust R, Lenaerts S, Communications in agricultural and applied biological sciences 1, 141 (2013)
Keywords: A2 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL)
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“Reliable pore-size measurements based on a procedure specifically designed for electron tomography measurements of nanoporous samples”. Van Eyndhoven G, Batenburg KJ, van Oers C, Kurttepeli M, Bals S, Cool P, Sijbers J, (2014)
Keywords: P3 Proceeding; Electron microscopy for materials research (EMAT); Vision lab; Laboratory of adsorption and catalysis (LADCA)
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Van Gaens W (2014) Plasma chemistry modelling of an atmospheric pressure argon plasma jet with air impurities for plasma medicine applications. Antwerpen
Keywords: Doctoral thesis; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“2014 Award for best referee of X-Ray Spectrometry”. Van Grieken R, X-ray spectrometry 43, 311 (2014). http://doi.org/10.1002/XRS.2564
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2564
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“Aerosol composition studies using accelerator proton bombardment”. Van Grieken R, (1974)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Air pollution and preventive conservation in some European museums”. Van Grieken R, , 19 (2014)
Keywords: P1 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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Van Grieken R (1973) Analyse van ferro-metalen door activering met 14 MeV neutronen. 128 p
Keywords: MA3 Book as author; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Anorganische sporenanalyse voor milieuonderzoek”. Van Grieken R, (1986)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Awards for best referees of X-ray Spectrometry”. Van Grieken R, X-ray spectrometry 43, 68 (2014). http://doi.org/10.1002/XRS.2530
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2530
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“Dispersion of heavy metals”. Van Grieken R page 319 (1998).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Editorial : award for best X-Ray Spectrometry referee during 2011-2012”. Van Grieken R, X-ray spectrometry 42, 3 (2013). http://doi.org/10.1002/XRS.2428
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2428
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“Editorial: Award for best XRS referee during 2007-2008”. Van Grieken R, X-ray spectrometry 37, 571 (2008). http://doi.org/10.1002/XRS.1107
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.1107
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“Editorial : introducing Dr Markowicz as X-Ray Spectrometry's new associate editor for Europe”. Van Grieken R, X-ray spectrometry 42, 175 (2013). http://doi.org/10.1002/XRS.2447
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2447
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“Introducing four new members of the editorial board of X-ray spectrometry”. Van Grieken R, X-ray spectrometry 44, 1 (2015). http://doi.org/10.1002/XRS.2577
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2577
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“Introducing John Campbell, the new regional editor for North America of X-Ray Spectrometry”. Van Grieken R, X-ray spectrometry 43, 67 (2014). http://doi.org/10.1002/XRS.2534
Keywords: Editorial; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2534
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“Introduction: considering the role of X-ray spectrometry in chemical analysis and outlining the volume”. Van Grieken R page 1 (2004).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Martime influences on the atmospheric aerosol composition”. Van Grieken R page 139 (1977).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Materiaaltransfer van de oceaan naar de atmosfeer”. Van Grieken R, Mededelingen en informatie , 15 (1976)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“New Chinese members of the Advisory Board of X-Ray Spectrometry”. Van Grieken R, X-ray spectrometry 35, 205 (2006)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“New members of the editorial board of X-ray Spectrometry”. Van Grieken R, X-ray spectrometry 42, 1 (2013). http://doi.org/10.1002/XRS.2431
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/XRS.2431
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“Ocean-atmosphere interactions and oil pollution”. Van Grieken R, (1974)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Preconcentration methods for the analysis of water by X-ray spectrometric techniques”. Van Grieken R, Analytica chimica acta 143, 3 (1982). http://doi.org/10.1016/S0003-2670(01)95486-8
Abstract: All published procedures for multi-element preconcentration of trace elements, prior to x-ray fluorescence analysis of water, are reviewed and critically evaluated. Most preconcentration methods applied to the determination of single elements in water are also listed.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(01)95486-8
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“Stof : begrippen, bronnen en analysmethoden”. Van Grieken R, (1985)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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