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Fakultät für Chemie
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S05 V02 E25
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Gruppe der akademischen Mitarbeiterinnen und Mitarbeiter, Prüfungsausschuss B.Sc./M.Sc.-Studiengang Water Science
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Wissenschaftliche/r Mitarbeiter/in, Prof. Schmidt
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2024 SS
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2023 WS
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2023 SS
Die folgenden Publikationen sind in der Online-Universitätsbibliographie der Universität Duisburg-Essen verzeichnet. Weitere Informationen finden Sie gegebenenfalls auch auf den persönlichen Webseiten der Person.
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A Proof-of-Principle Study for δ¹⁵N Measurements of Aqueous Dissolved Nitrate With a Modified LC-IRMS InterfaceIn: Rapid Communications in Mass Spectrometry Jg. 39 (2025) Nr. 3, e9950Online Volltext: dx.doi.org/ (Open Access)
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Compound-specific isotope analysis of amino acids for aquatic systems – Problems, challenges, solutions : A reviewIn: Trends in Analytical Chemistry (TrAC) Jg. 181 (2024) 118038Online Volltext: dx.doi.org/ (Open Access)
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Dispersive liquid-liquid microextraction as a novel enrichment approach for compound-specific carbon isotope analysis of chlorinated phenolsIn: Analytical Methods Jg. 16 (2024) Nr. 6, S. 919 - 929Online Volltext: dx.doi.org/
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Effects of pH-dependent speciation on the photolytic degradation mechanism of phosphonatesIn: Journal of Photochemistry and Photobiology A: Chemistry Jg. 448 (2024) 115327Online Volltext: dx.doi.org/
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Evaluation of GC-EI&CI-TOFMS for Nontarget Analysis of Industrial Wastewater Using Hydrophilic-Lipophilic-Balanced SPMEIn: Analytical Chemistry Jg. 96 (2024) Nr. 16, S. 6122 - 6130Online Volltext: dx.doi.org/
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Insight into Imidacloprid Degradation through Compound Specific Carbon Isotope Analysis and High-Resolution Mass SpectrometryIn: ACS ES&T Water (2024) in pressOnline Volltext: dx.doi.org/
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Stable isotopes (¹⁵N) facilitate non-invasive labelling of large quantities of macroinvertebrates across different species and feeding typesIn: Ecology and Evolution Jg. 14 (2024) Nr. 6, e11539Online Volltext: dx.doi.org/ (Open Access)
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A new technique to study nutrient flow in host-parasite systems by carbon stable isotope analysis of amino acids and glucoseIn: Scientific Reports Jg. 13 (2023) Nr. 1, 1054Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Characterization of a hydrophilic-lipophilic balanced SPME material for enrichment of analytes with different polarities from aqueous samplesIn: Advances in Sample Preparation Jg. 8 (2023) 100099Online Volltext: dx.doi.org/ (Open Access)
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Improving greenness and sustainability of standard analytical methods by microextraction techniques : A critical reviewIn: Analytica Chimica Acta Jg. 1271 (2023) 341468Online Volltext: dx.doi.org/
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Isotope-labeling in situ derivatization and HS-SPME arrow GC–MS/MS for simultaneous determination of fatty acids and fatty acid methyl esters in aqueous matricesIn: Analytical and Bioanalytical Chemistry Jg. 415 (2023) Nr. 26, S. 6525 - 6536Online Volltext: dx.doi.org/ (Open Access)
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Mechanistic investigation of phosphonate photolysis in aqueous solution by simultaneous LC-IRMS and HRMS analysisIn: Journal of Photochemistry and Photobiology A: Chemistry Jg. 439 (2023) 114582Online Volltext: dx.doi.org/
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The Asymmetric Response Concept explains ecological consequences of multiple stressor exposure and releaseIn: Science of the Total Environment Jg. 872 (2023) 162196Online Volltext: dx.doi.org/
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Aromatic amines contents of cigarette butts : Fresh and aged cigarette butts vs unsmoked cigaretteIn: Chemosphere Jg. 301 (2022) 134735Online Volltext: dx.doi.org/
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How to Couple LC-IRMS with HRMS : A Proof-of-Concept StudyIn: Analytical Chemistry Jg. 94 (2022) Nr. 6, S. 2981 - 2987Online Volltext: dx.doi.org/
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In-tube dynamic extraction a green solventless alternative for a sensitive headspace analysis of volatile organic compounds in olive oilsIn: Advances in Sample Preparation Jg. 1 (2022) 100002Online Volltext: dx.doi.org/ (Open Access)
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In-tube dynamic extraction for analysis of volatile organic compounds in honey samplesIn: Food Chemistry: X Jg. 14 (2022) 100337Online Volltext: dx.doi.org/ (Open Access)
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Insights into amino acid fractionation and incorporation by compound-specific carbon isotope analysis of three-spined sticklebacksIn: Scientific Reports Jg. 12 (2022) Nr. 1, 11690Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Linking reaction rate constants and isotope fractionation of ozonation reactions using phenols as probesIn: Water Research Jg. 210 (2022) 117931Online Volltext: dx.doi.org/
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Optimization and automation of rapid and selective analysis of fatty acid methyl esters from aqueous samples by headspace SPME arrow extraction followed by GC–MS/MS analysisIn: Analytical and Bioanalytical Chemistry Jg. 414 (2022) Nr. 22, S. 6473 - 6483Online Volltext: dx.doi.org/ (Open Access)
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Two Pathways Compete in the Mn(II)-Catalyzed Oxidation of Aminotrismethylene Phosphonate (ATMP)In: Environmental Science & Technology Jg. 56 (2022) Nr. 7, S. 4091 - 4100Online Volltext: dx.doi.org/
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BTEX compounds leachates from cigarette butts into water environment : A primary studyIn: Environmental Pollution Jg. 269 (2021) S. 116185Online Volltext: dx.doi.org/
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Development and comparison of direct immersion solid phase micro extraction Arrow-GC-MS for the determination of selected pesticides in waterIn: Microchemical Journal Jg. 164 (2021) 106006Online Volltext: dx.doi.org/
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Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)In: Scientific Reports Jg. 11 (2021) Nr. 1, 3440Online Volltext: dx.doi.org/ (Open Access)
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A nebulizer interface for liquid chromatography - Flame ionization detection : Development and validationIn: Talanta: The International Journal of Pure and Applied Analytical Chemistry Jg. 206 (2020) 120229Online Volltext: dx.doi.org/
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Carbon Isotope Fractionation of Substituted Benzene Analogs during Oxidation with Ozone and Hydroxyl Radicals : How Should Experimental Data Be Interpreted?In: Environmental Science & Technology Jg. 54 (2020) Nr. 11, S. 6713 - 6722Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Determination of liquid chromatography/flame ionization detection response factors for N-heterocycles, carboxylic acids, halogenated compounds, and othersIn: Analytical and Bioanalytical Chemistry Jg. 412 (2020) Nr. 1, S. 171 - 179Online Volltext: dx.doi.org/
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Optimization and validation of automated solid-phase microextraction arrow technique for determination of phosphorus flame retardants in waterIn: Journal of Chromatography A Jg. 1626 (2020) S. 461349Online Volltext: dx.doi.org/
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Polycyclic aromatic hydrocarbons (PAHs) leachates from cigarette butts into waterIn: Environmental Pollution Jg. 259 (2020) S. 113916Online Volltext: dx.doi.org/
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Stable carbon isotope analysis of polyphosphonate complexing agents by anion chromatography coupled to isotope ratio mass spectrometry : Method development and applicationIn: Analytical and Bioanalytical Chemistry Jg. 412 (2020) Nr. 20, S. 4827 - 4835Online Volltext: dx.doi.org/
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Stable isotope analysis spills the beans about spatial variance in trophic structure in a fish host – parasite system from the Vaal River System, South AfricaIn: International Journal for Parasitology: Parasites and Wildlife Jg. 12 (2020) S. 134 - 141Online Volltext: dx.doi.org/ (Open Access)
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You are how you eat : Differences in trophic position of two parasite species infecting a single host according to stable isotopesIn: Parasitology Research Jg. 119 (2020) Nr. 4, S. 1393 - 1400Online Volltext: dx.doi.org/ (Open Access)
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A centrifuge tube reactor for the determination of bacterial methane oxidation enrichment factors without influence of diffusion related isotope fractionationIn: Science of the Total Environment Jg. 659 (2019) S. 1382 - 1386Online Volltext: dx.doi.org/
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A green approach for the extraction of diamondoids from petroleum source rockIn: Analytica Chimica Acta Jg. 1091 (2019) S. 23 - 29Online Volltext: dx.doi.org/
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An overview of approaches in liquid chromatography flame ionization detectionIn: Trends in Analytical Chemistry (TrAC) Jg. 110 (2019) S. 143 - 149Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Applying reverse stable isotope labeling analysis by mid-infrared laser spectroscopy to monitor BDOC in recycled wastewaterIn: Science of the Total Environment Jg. 665 (2019) S. 1064 - 1072Online Volltext: dx.doi.org/
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Automated determination of picogram-per-liter level of water taste and odor compounds using solid-phase microextraction arrow coupled with gas chromatography-mass spectrometryIn: Analytical and Bioanalytical Chemistry (2019)Online Volltext: dx.doi.org/
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Cigarette butts: An overlooked source of PAHs in the environment?In: Environmental Pollution Jg. 249 (2019) S. 932 - 939Online Volltext: dx.doi.org/
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Correction : Determining the role of redox-active materials during laser-induced water decompositionIn: Physical Chemistry, Chemical Physics (PCCP) Jg. 21 (2019) Nr. 43, S. 24239Online Volltext: dx.doi.org/ (Open Access)
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Determination of liquid chromatography/flame ionization detection response factors for alcohols, ketones, and sugarsIn: Analytical and Bioanalytical Chemistry Jg. 411 (2019) Nr. 12, S. 2635 - 2644Online Volltext: dx.doi.org/
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Determining the role of redox-active materials during laser-induced water decompositionIn: Physical Chemistry, Chemical Physics (PCCP) Jg. 21 (2019) Nr. 34, S. 18636 - 18651Online Volltext: dx.doi.org/
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Monitoring of the total carbon and nitrogen balance during the mineralization of nitrogen containing compounds by heat activated persulfateIn: Chemical Engineering Journal Jg. 367 (2019) S. 160 - 168Online Volltext: dx.doi.org/
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New Concepts for the Determination of Oxidation Efficiencies in Liquid Chromatography-Isotope Ratio Mass SpectrometryIn: Analytical Chemistry Jg. 91 (2019) Nr. 8, S. 5067 - 5073Online Volltext: dx.doi.org/ (Open Access)
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Solventless microextraction techniques for water analysisIn: Trends in Analytical Chemistry (TrAC) Jg. 113 (2019) S. 321 - 331Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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The monogenean Paradiplozoon ichthyoxanthon behaves like a micropredator on two of its hosts, as indicated by stable isotopesIn: Journal of Helminthology Jg. 93 (2019) Nr. 1, S. 71 - 75Online Volltext: dx.doi.org/
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Carbon Isotopic Fractionation via Diffusion in a Coarse MaterialIn: Geochemistry, Geophysics, Geosystems Jg. 19 (2018) Nr. 9, S. 3246 - 3253Online Volltext: dx.doi.org/ (Open Access)
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Direct Photolysis of Sulfamethoxazole Using Various Irradiation Sources and Wavelength Ranges - Insights from Degradation Product Analysis and Compound-Specific Stable Isotope AnalysisIn: Environmental Science & Technology Jg. 52 (2018) Nr. 3, S. 1225 - 1233Online Volltext: dx.doi.org/
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Origin of Xylitol in Chewing Gum : A Compound-Specific Isotope Technique for the Differentiation of Corn- and Wood-Based Xylitol by LC-IRMSIn: Journal of Agricultural and Food Chemistry Jg. 66 (2018) Nr. 8, S. 2015 - 2020Online Volltext: dx.doi.org/
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Characterization of methane oxidation in a simulated landfill cover system by comparing molecular and stable isotope mass balancesIn: Waste Management Jg. 69 (2017) S. 281 - 288Online Volltext: dx.doi.org/
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Degradation of sulfamethoxazole using ozone and chlorine dioxide : Compound-specific stable isotope analysis, transformation product analysis and mechanistic aspectsIn: Water Research Jg. 122 (2017) S. 280 - 289Online Volltext: dx.doi.org/
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Investigation of carbon-based nanomaterials as sorbents for headspace in-tube extraction of polycyclic aromatic hydrocarbonsIn: Analytical and Bioanalytical Chemistry Jg. 409 (2017) Nr. 15, S. 3861 - 3870Online Volltext: dx.doi.org/
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Monitoring Microbial Mineralization Using Reverse Stable Isotope Labeling Analysis by Mid-Infrared Laser SpectroscopyIn: Environmental Science & Technology Jg. 51 (2017) Nr. 20, S. 11876 - 11883Online Volltext: dx.doi.org/ (Open Access)
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Sorbent material characterization using in-tube extraction needles as inverse gas chromatography columnIn: Journal of Separation Science Jg. 40 (2017) Nr. 11, S. 2390 - 2397Online Volltext: dx.doi.org/
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Understanding trophic interactions in host-parasite associations using stable isotopes of carbon and nitrogenIn: Parasites and Vectors Jg. 10 (2017) Nr. 1,Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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A metagenomic-based survey of microbial (de)halogenation potential in a German forest soilIn: Scientific Reports Jg. 6 (2016) S. 28958Online Volltext: dx.doi.org/ (Open Access)
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Evaluating the influence of wastewater composition on the growth of Microthrix parvicella by GCxGC/qMS and real-time PCRIn: Water Research Jg. 88 (2016) S. 510 - 523Online Volltext: dx.doi.org/
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PAL SPME Arrow — evaluation of a novel solid-phase microextraction device for freely dissolved PAHs in waterIn: Analytical and Bioanalytical Chemistry Jg. 408 (2016) Nr. 3, S. 943 - 952Online Volltext: dx.doi.org/ (Open Access)
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River restoration and the trophic structure of benthic invertebrate communities across 16 European restoration projectsIn: Hydrobiologia Jg. 169 (2016) Nr. 1, S. 105 - 120Online Volltext: dx.doi.org/
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Systematic comparison of static and dynamic headspace sampling techniques for gas chromatographyIn: Analytical and Bioanalytical Chemistry Jg. 408 (2016) Nr. 24, S. 6567 - 6579Online Volltext: dx.doi.org/
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Core-Shell hybrid particles by alternating copolymerization of ionic liquid monomers from silica as sorbent for solid phase microextractionIn: Macromolecular Materials and Engineering Jg. 300 (2015) Nr. 11, S. 1049 - 1056Online Volltext: dx.doi.org/
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Dual element (15N/14N, 13C/12C) isotope analysis of glyphosate and AMPA by derivatization-gas chromatography isotope ratio mass spectrometry (GC/IRMS) combined with LC/IRMSIn: Analytical and Bioanalytical Chemistry Jg. 407 (2015) Nr. 18, S. 5249 - 5260Online Volltext: dx.doi.org/
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Formation of chloroform and tetrachloroethene by Sinorhizobium meliloti strain 1021In: Letters in Applied Microbiology Jg. 61 (2015) Nr. 4, S. 346 - 353Online Volltext: dx.doi.org/
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Halogenated hydrocarbon formation in a moderately acidic salt lake in Western Australia - Role of abiotic and biotic processesIn: Environmental Chemistry Jg. 12 (2015) Nr. 4, S. 406 - 414Online Volltext: dx.doi.org/
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Ionic Liquid as Green Solvent for Leaching of Polycyclic Aromatic Hydrocarbons from Petroleum Source RockIn: Industrial and Engineering Chemistry Research (I&EC research) Jg. 54 (2015) Nr. 51, S. 12960 - 12965Online Volltext: dx.doi.org/
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Microwave-assisted ionic liquid extraction of n-alkanes and isoprenoid hydrocarbons from petroleum source rockIn: Chromatographia: an international journal for rapid communication in chromatography, electrophoresis, and associated techniques Jg. 78 (2015) Nr. 17, S. 1201 - 1209Online Volltext: dx.doi.org/
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Optimization of a large-volume injection method for compound-specific isotope analysis of polycyclic aromatic compounds at trace concentrationsIn: Rapid Communications in Mass Spectrometry Jg. 29 (2015) Nr. 24, S. 2349 - 2360Online Volltext: dx.doi.org/
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Optimization strategies of in-tube extraction (ITEX) methodsIn: Analytical and Bioanalytical Chemistry Jg. 407 (2015) Nr. 22, S. 6827 - 6838Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Carbon isotope ratio analysis of steroids by high temperature liquid chromatography - isotope ratio mass spectrometryIn: Analytical Chemistry Jg. 86 (2014) Nr. 5, S. 2297 - 2302Online Volltext: dx.doi.org/
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In-tube extraction-GC-MS as a high-capacity enrichment technique for the analysis of alcoholic beveragesIn: Journal of Agricultural and Food Chemistry Jg. 62 (2014) Nr. 14, S. 3081 - 3091Online Volltext: dx.doi.org/
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Predominance of biotic over abiotic formation of halogenated hydrocarbons in hypersaline sediments in Western AustraliaIn: Environmental Science & Technology Jg. 48 (2014) Nr. 16, S. 9170 - 9178Online Volltext: dx.doi.org/
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Carbon isotope ratio measurements of glyphosate and AMPA by liquid chromatography coupled to isotope ratio mass spectrometryIn: Analytical and Bioanalytical Chemistry Jg. 405 (2013) Nr. 9, S. 2869 - 2878Online Volltext: dx.doi.org/
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Empfindlich, automatisch und ohne LösungsmittelIn: Nachrichten aus der Chemie Jg. 61 (2013) S. 54 - 56Online Volltext: dx.doi.org/
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Multi-walled carbon nanotubes as sorptive material for solventless in-tube microextraction (ITEX2) - a factorial design studyIn: Analytical and Bioanalytical Chemistry Jg. 405 (2013) Nr. 26, S. 8387 - 8395Online Volltext: dx.doi.org/
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Position-specific isotope analysis of the methyl group carbon in methylcobalamin for the investigation of biomethylation processesIn: Analytical and Bioanalytical Chemistry Jg. 405 (2013) Nr. 9, S. 2833 - 2841Online Volltext: dx.doi.org/
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Caffeine in your drink : natural or synthetic?In: Analytical Chemistry Jg. 84 (2012) Nr. 6, S. 2805 - 2810Online Volltext: dx.doi.org/
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Current challenges in compound-specific stable isotope analysis of environmental organic contaminantsIn: Analytical and Bioanalytical Chemistry Jg. 403 (2012) Nr. 9, S. 2471 - 2491Online Volltext: dx.doi.org/
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Factors controlling leaching of polycyclic aromatic hydrocarbons from petroleum source rock using nonionic surfactantIn: Chromatographia: an international journal for rapid communication in chromatography, electrophoresis, and associated techniques Jg. 75 (2012) Nr. 5-6, S. 213 - 221Online Volltext: dx.doi.org/
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Fingerprinting of red wine by headspace solid-phase dynamic extraction of volatile constituentsIn: Analytical and Bioanalytical Chemistry Jg. 403 (2012) Nr. 8, S. 2429 - 2436Online Volltext: dx.doi.org/
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Origin and Fate of Organic Compounds in Water : Characterization by Compound-Specific Stable Isotope AnalysisIn: Annual Review of Analytical Chemistry Jg. 5 (2012) Nr. 5, S. 133 - 155Online Volltext: dx.doi.org/
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Solvent-free microextraction techniques in gas chromatographyIn: Analytical and Bioanalytical Chemistry Jg. 402 (2012) Nr. 2, S. 565 - 571Online Volltext: dx.doi.org/
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When other separation techniques fail : compound-specific carbon isotope ratio analysis of sulfonamide containing pharmaceuticals by high-temperature-liquid chromatography-isotope ratio mass spectrometryIn: Analytical Chemistry Jg. 84 (2012) Nr. 18, S. 7656 - 7663Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Compound-specific chlorine isotope analysis : a comparison of gas chromatography/isotope ratio mass spectrometry and gas chromatography/quadrupole mass spectrometry methods in an interlaboratory studyIn: Analytical Chemistry Jg. 83 (2011) Nr. 20, S. 7624 - 7634Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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High-temperature reversed-phase liquid chromatography coupled to isotope ratio mass spectrometryIn: Rapid Communications in Mass Spectrometry Jg. 25 (2011) Nr. 20, S. 2971 - 2980Online Volltext: dx.doi.org/
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Microwave-assisted nonionic surfactant extraction of aliphatic hydrocarbons from petroleum source rockIn: Analytica Chimica Acta Jg. 691 (2011) Nr. 1-2, S. 48 - 55Online Volltext: dx.doi.org/
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In-tube extraction of volatile organic compounds from aqueous samples : an economical alternative to purge and trap enrichmentIn: Analytical Chemistry Jg. 82 (2010) Nr. 18, S. 7641 - 7648Online Volltext: dx.doi.org/
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Stable carbon and hydrogen isotope analysis of methyl tert-butyl ether and tert-amyl methyl ether by purge and trap-gas chromatography-isotope ratio mass spectrometry : method evaluation and applicationIn: Journal of Environmental Monitoring (JEM) Jg. 12 (2010) Nr. 1, S. 347 - 354Online Volltext: dx.doi.org/
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Determination of volatile organic compounds by solid-phase microextraction-gas chromatography-differential mobility spectrometryIn: International Journal for Ion Mobility Spectrometry Jg. 12 (2009) Nr. 4, S. 123 - 130Online Volltext: dx.doi.org/
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Flow iInjection analysis−isotope ratio mass spectrometry for bulk carbon stable isotope analysis of alcoholic beveragesIn: Journal of Agricultural and Food Chemistry Jg. 57 (2009) Nr. 22, S. 10489 - 10496Online Volltext: dx.doi.org/
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In-tube extraction for enrichment of volatile organic hydrocarbons from aqueous samplesIn: Journal of Chromatography A Jg. 1179 (2008) Nr. 2, S. 96 - 105Online Volltext: dx.doi.org/
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Pitfalls in compound-specific isotope analysis of environmental samplesIn: Analytical and Bioanalytical Chemistry Jg. 390 (2008) Nr. 2, S. 591 - 603Online Volltext: dx.doi.org/
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Determination of volatile organic hydrocarbons in water samples by solid-phase dynamic extractionIn: Analytical and Bioanalytical Chemistry Jg. 387 (2007) Nr. 6, S. 2163 - 2174Online Volltext: dx.doi.org/
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Indications for pedogenic formation of perylene in a terrestrial soil profile : depth distribution and first results from stable carbon isotope ratiosIn: Applied Geochemistry Jg. 22 (2007) Nr. 12, S. 2652 - 2663Online Volltext: dx.doi.org/
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Isotopenanalyse : ein neues Werkzeug in der UmweltanalytikIn: Nachrichten aus der Chemie Jg. 55 (2007) Nr. 5, S. 536 - 539Online Volltext: dx.doi.org/
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A new approach to determine method detection limits for compound-specific isotope analysis of volatile organic compoundsIn: Rapid Communications in Mass Spectrometry Jg. 20 (2006) Nr. 24, S. 3639 - 3648Online Volltext: dx.doi.org/
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Solid-phase dynamic extraction for the enrichment of polar volatile organic compounds from waterIn: Journal of Chromatography A Jg. 1115 (2006) Nr. 1/2, S. 208 - 216Online Volltext: dx.doi.org/
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Compound-specific Stable Isotope AnalysisCambridge (2012) 376 S.
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Evaluating influences of wastewater composition on the growth of M. Parvicella by GCxGC-qMS and QPCR : poster presentation
12th IWA Leading Edge Conference on Water and Wastewater Technologies, 30.05.-03.06.2015, Hongkong,(2015)