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1. Compound-Specific Stable Isotope Analysis
by Jochmann, Maik A
2011, ISBN 1849731578, 250
Book
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2. Full Text Recent trends in water analysis triggering future monitoring of organic micropollutants
by Schmidt, Torsten C
Analytical and Bioanalytical Chemistry, ISSN 1618-2642, 7/2018, Volume 410, Issue 17, pp. 3933 - 3941
Water analysis has been an important area since the beginning of analytical chemistry. The focus though has shifted substantially: from minerals and the main... 
Biochemistry, general | Effect-based analysis | Multidimensional chromatography | Food Science | High-resolution mass spectrometry | Laboratory Medicine | Chemistry | Analytical Chemistry | Monitoring/Environmental Analysis | Organic micropollutants | Ion mobility | Water analysis | Characterization and Evaluation of Materials | COMPLEX SAMPLES | CHEMISTRY, ANALYTICAL | BIOCHEMICAL RESEARCH METHODS | RESOLUTION MASS-SPECTROMETRY | SURFACE-WATER | EFFECT-DIRECTED ANALYSIS | EMERGING CONTAMINANTS | QTOF-MS | LIQUID-CHROMATOGRAPHY | THIN-LAYER-CHROMATOGRAPHY | WASTE-WATER | SOLID-PHASE EXTRACTION | Water | Forecasts and trends | Environmental monitoring | Analysis | Analytical chemistry | Spectroscopy | Automation | High resolution | Chemical analysis | Sensitivity analysis | Innovations | Instrumentation | Mass spectroscopy | Minerals | Water monitoring | Environmental impact | Mimicry | Water sampling | Mathematical analysis | Water pollution | Scientific imaging | Environmental testing | Trends | Pollutants | Mass spectrometry | Organic compounds
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3. Full Text Robust Automatic Identification of Microplastics in Environmental Samples Using FTIR Microscopy
by Renner, G and Sauerbier, P and Schmidt, TC and Schram, J
ANALYTICAL CHEMISTRY, ISSN 0003-2700, 08/2019, Volume 91, Issue 15, pp. 9656 - 9664
The analysis of microplastics is mainly performed using Fourier transformation infrared spectroscopy/microscopy (FTIR/mu FTIR). However, in contrast to most... 
BEACH | CHEMISTRY, ANALYTICAL | EXTRACTION | FILTER | QUANTIFICATION | MARINE-ENVIRONMENT | PROTOCOL | BASE-LINE CORRECTION | WAVELET TRANSFORM | EFFICIENT METHOD | Infrared spectroscopy | Automation | Transformation | Fourier transforms | Infrared analysis | Algorithms | Sample preparation | Microscopy | Robustness (mathematics) | Searching | Spectrum analysis | Microplastics | Curve fitting
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4. Environmental Conditions Influencing Sorption of Inorganic Anions to Multiwalled Carbon Nanotubes Studied by Column Chromatography
by Florian Metzelder and Torsten C Schmidt
Environmental Science & Technology, ISSN 0013-936X, 05/2017, Volume 51, Issue 9, p. 4928
Sorption to carbon-based nanomaterials is typically studied in batch experiments. An alternative method offering advantages to study sorption is column... 
Deuterium | Competition | Enthalpy | Nanotubes | Carbon nanotubes | Nitrates | Nitrite | pH effects | Chloride ions | Anions | Hydrogen ions | Temperature effects | Surface charge | Iodides | Nanomaterials | Electrostatic properties | Sodium chloride | Carbon | Chromatography | Environmental conditions | Sorption | Nitrate | Sodium | Ionic strength | Electrostatics | Column chromatography | Nanotechnology
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5. Sorption of Heterocyclic Organic Compounds to Multiwalled Carbon Nanotubes
by Florian Metzelder and Matin Funck and Torsten C Schmidt
Environmental Science & Technology, ISSN 0013-936X, 01/2018, Volume 52, Issue 2, p. 628
Sorption is an important natural and technical process. Sorption coefficients are typically determined in batch experiments, but this may be challenging for... 
Deuterium | Column packings | Sorbents | Nanotubes | pH effects | Carbon | Chromatography | Sorption | Heavy water | Ionic strength | Heterocyclic compounds | Predictions | Organic chemicals | Column chromatography | Multi wall carbon nanotubes | Sorbates | Functional groups | Nanotechnology | Organic compounds
Journal Article
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6. Full Text Implementation of Chemometric Tools To Improve Data Mining and Prioritization in LC-HRMS for Nontarget Screening of Organic Micropollutants in Complex Water Matrixes
by Hohrenk, LL and Vosough, M and Schmidt, TC
ANALYTICAL CHEMISTRY, ISSN 0003-2700, 07/2019, Volume 91, Issue 14, pp. 9213 - 9220
One of the most critical steps in nontarget screening of organic micropollutants (OMP) in complex environmental samples is handling of massive data obtained... 
PERFORMANCE LIQUID-CHROMATOGRAPHY | EMERGING CONTAMINANTS | CHEMISTRY, ANALYTICAL | RICE METABOLOME | PART I | MASS-SPECTROMETRY DATA | WASTE-WATER | MCR-ALS | MULTIVARIATE CURVE RESOLUTION | TRANSFORMATION PRODUCTS | VARIABLE SELECTION | Spectroscopy | Discriminant analysis | Statistical analysis | Segmentation | Ozonation | Information retrieval | Mass spectroscopy | Liquid chromatography | Statistical methods | Wastewater | Data mining | Multivariate analysis | Chromatography | Screening | Data sets | Information processing | Least squares | Environmental studies | Scientific imaging | Mass spectrometry | Mass spectra
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7. A New Chemometric Approach for Automatic Identification of Microplastics from Environmental Compartments Based on FT-IR Spectroscopy
by Gerrit Renner and Torsten C Schmidt and Jürgen Schram
Analytical Chemistry, ISSN 0003-2700, 11/2017, Volume 89, Issue 22, p. 12045
One key step studying interactions of microplastics with our ecological system is to identify plastics within environmental samples. Aging processes and... 
Spectroscopy | Infrared spectroscopy | Transformation | Automation | Fourier transforms | Vibration | Search algorithms | Cleaning | Contamination | Algorithms | Biofilms | Spectrum analysis | Weathering | Aging | Ecological monitoring | Microplastics | Plastics | Polymers | Curve fitting
Journal Article
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8. Comparison of Sorption to Carbon-Based Materials and Nanomaterials Using Inverse Liquid Chromatography
by Florian Metzelder and Matin Funck and Thorsten Hüffer and Torsten C Schmidt
Environmental Science & Technology, ISSN 0013-936X, 09/2018, Volume 52, Issue 17, p. 9731
Sorption studies of carbon-based materials and nanomaterials are typically conducted using batch experiments, but the analysis of weakly sorbing compounds may... 
Column packings | Sorbents | Nanotubes | Carbon nanotubes | Nanomaterials | Liquid chromatography | Carbon sequestration | Carbon | Chromatography | Pyrazole | Sorption | Isotherms | Graphene | Activated carbon | Surface area | Platelets | Column chromatography | Nanotechnology | Organic compounds | Charcoal
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9. Full Text A green approach for the extraction of diamondoids from petroleum source rock
by Akinlua, Akinsehinwa and Jochmann, Maik A and Lorenzo-Parodi, Nerea and Stojanovic, Nenad and Kaziur, Wiebke and Schmidt, Torsten C
Analytica Chimica Acta, ISSN 0003-2670, 12/2019, Volume 1091, pp. 23 - 29
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10. Full Text Quantitative screening and prioritization based on UPLC-IM-Q-TOF-MS as an alternative water sample monitoring strategy
by Hinnenkamp, Vanessa and Balsaa, Peter and Schmidt, Torsten C
Analytical and Bioanalytical Chemistry, ISSN 1618-2642, 9/2019, Volume 411, Issue 23, pp. 6101 - 6110
Suspect and non-target screening based on the use of high-resolution mass spectrometry (HRMS) has become more common in water analysis over the past years.... 
Biochemistry, general | LC-IM-HRMS | Chemistry | Analytical Chemistry | Quantitative screening | Micropollutants | Food Science | Monitoring/Environmental Analysis | Characterization and Evaluation of Materials | Laboratory Medicine | Water monitoring | LARGE-VOLUME INJECTION | CHEMISTRY, ANALYTICAL | EMERGING POLLUTANTS | PERFORMANCE | BIOCHEMICAL RESEARCH METHODS | RESOLUTION MASS-SPECTROMETRY | TRANSFORMATION PRODUCTS | QTOF-MS | LIQUID-CHROMATOGRAPHY | WASTE-WATER | SUSPECT | Usage | Analysis | Water, Underground | Aquatic resources | Israel | Mass spectrometry | High performance liquid chromatography | Germany | Drinking water | Ionic mobility | Quadrupoles | Surface-groundwater relations | Groundwater | Water analysis | Monitoring | Target detection | Spectroscopy | Ions | Traveling waves | Mass spectroscopy | Liquid chromatography | Calibration | Regression analysis | High-performance liquid chromatography | Standards | Chromatography | Gas chromatography | Screening | Water sampling | Surface water | Comparative studies | Scientific imaging | Environmental monitoring | Methods
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11. Full Text Editorial: VSI “Inter- and Transdiciplinary Water Research”
by Kresmann, Simon and Leggewie, Claus and Teichgräber, Burkhard and Schmidt, Torsten C
Science of the Total Environment, ISSN 0048-9697, 09/2018, Volume 636, pp. 1517 - 1519
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12. Full Text Determination of liquid chromatography/flame ionization detection response factors for alcohols, ketones, and sugars
by Becker, Christian and Jochmann, Maik A and Schmidt, Torsten C
Analytical and Bioanalytical Chemistry, ISSN 1618-2642, 5/2019, Volume 411, Issue 12, pp. 2635 - 2644
In the past, the main focus of flame ionization detector (FID) response studies was set on investigations of gas chromatography (GC) relevant analytes such as... 
Biochemistry, general | FID | Chemistry | Analytical Chemistry | Food Science | Monitoring/Environmental Analysis | LC/FID response | Characterization and Evaluation of Materials | Laboratory Medicine | Nebulizer interface | LC/FID | FID response | CHEMISTRY, ANALYTICAL | SUPERHEATED WATER | BIOCHEMICAL RESEARCH METHODS | QUANTITATIVE-DETERMINATION | Liquid chromatography | Research | Ketones | Analysis | Detectors | Alcohols | Correlation coefficient | Correlation coefficients | Ions | Alcohol | Aliphatic hydrocarbons | Isomers | Aliphatic compounds | Chromatography | Scientific papers | Flame ionization detectors | Gas chromatography | Molecular modelling | Prediction models | Ionization | Polarity | Mathematical models | Sugar | Sugars | Functional groups | Hydroxyl groups
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13. Full Text Addition to “Degradation of the Polymeric Brominated Flame Retardant ‘Polymeric FR’ by Heat and UV Exposure”
by Koch, Christoph and Nachev, Milen and Klein, Julia and Köster, Daniel and Schmitz, Oliver J and Schmidt, Torsten C and Sures, Bernd
Environmental Science & Technology, ISSN 0013-936X, 04/2019, Volume 53, Issue 8, pp. 4675 - 4675
Flame retardants | Fire retardant chemicals | Addition polymerization | Fire retardants | Bromination
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14. Full Text An overview of approaches in liquid chromatography flame ionization detection
by Becker, Christian and Jochmann, Maik A and Schmidt, Torsten C
Trends in Analytical Chemistry, ISSN 0165-9936, 01/2019, Volume 110, pp. 143 - 149
Several attempts to combine high performance liquid chromatography (HPLC) with flame ionization detection (FID) have been made since the 1960s. Elaborated... 
FID | Detector | Flame ionization | Nebulizer interface | LC/FID | CHEMISTRY, ANALYTICAL | SUPERHEATED WATER | ELUENT | SUBSTANCES | IDENTIFICATION | SUBCRITICAL WATER CHROMATOGRAPHY | RESPONSE FACTORS | PHASE | IMPROVEMENT | SEPARATION | HPLC
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15. Full Text A nebulizer interface for liquid chromatography - Flame ionization detection: Development and validation
by Becker, Christian and Jochmann, Maik A and Teutenberg, Thorsten and Schmidt, Torsten C
Talanta, ISSN 0039-9140, 01/2020, Volume 206, p. 120229
Within this study, a novel liquid chromatography (LC)/flame ionization detector (FID) interface was improved. In contrast to previously published interface... 
FID | Nebulizer interface | LC/FID response | N-heterocycles | LC/FID | RESPONSE FACTORS | CHEMISTRY, ANALYTICAL | PHASE | ABSORBENCY | PARAMETERS | LIGHT-SCATTERING DETECTOR | WATER
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16. Ozonation of Tamoxifen and Toremifene: Reaction Kinetics and Transformation Products
by Oliver Knoop and Lotta L Hohrenk and Holger V Lutze and Torsten C Schmidt
Environmental Science & Technology, ISSN 0013-936X, 11/2018, Volume 52, Issue 21, p. 12583
The oxidation of the two antiestrogenic pharmaceuticals tamoxifen and toremifene with ozone in water was investigated concerning kinetics, reaction pathway,... 
Drugs | Protein kinase A | Transformation | Rate constants | Hydroxylation | Ozonation | Ozone | Oxides | Tamoxifen | Metal oxides | Reaction kinetics | Dependence | Toremifene | Protonation | Oxidation | Transformations | Kinetics | N-Oxides
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17. Full Text Degradation of the Polymeric Brominated Flame Retardant “Polymeric FR” by Heat and UV Exposure
by Koch, Christoph and Nachev, Milen and Klein, Julia and Köster, Daniel and Schmitz, Oliver J and Schmidt, Torsten C and Sures, Bernd
Environmental Science & Technology, ISSN 0013-936X, 02/2019, Volume 53, Issue 3, pp. 1453 - 1462
Monomeric brominated flame retardants often pose risks to the environment. The new group of polymeric flame retardants is claimed to be a safer alternative due... 
Biodegradation | Bromine | Fire retardant chemicals | Degradation products | Fire retardants | U.V. radiation | Bromination | Distilled water | Flame retardants | Exposure | Environmental effects | Molecular weight | Weight | Degradation | Ultraviolet radiation | Heat | Environmental degradation | Irradiation | Rain water | Hydroxybenzoic acid | Polymers | Retardants
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18. Full Text Automated determination of picogram-per-liter level of water taste and odor compounds using solid-phase microextraction arrow coupled with gas chromatography-mass spectrometry
by Kaziur, Wiebke and Salemi, Amir and Jochmann, Maik A and Schmidt, Torsten C
Analytical and Bioanalytical Chemistry, ISSN 1618-2642, 5/2019, Volume 411, Issue 12, pp. 2653 - 2662
Taste and odor compounds are organic chemicals produced via biochemical processes, and their presence, even at low nanogram-per-liter concentrations, can make... 
Biochemistry, general | Water | Chemistry | Analytical Chemistry | Food Science | Monitoring/Environmental Analysis | Taste and odor | Solid-phase microextraction arrow | Characterization and Evaluation of Materials | Laboratory Medicine | Gas chromatography-mass spectrometry | Optimization | CHEMISTRY, ANALYTICAL | 2,4,6-TRICHLOROANISOLE | BIOCHEMICAL RESEARCH METHODS | GEOSMIN | THRESHOLD CONCENTRATIONS | OFF-FLAVOR COMPOUNDS | EARTHY | BAR SORPTIVE EXTRACTION | SAMPLES | DRINKING-WATER | TRACE DETERMINATION | VOLATILE ORGANIC-COMPOUNDS | Automation | Gas Chromatography-Mass Spectrometry - methods | Limit of Detection | Temperature | Osmolar Concentration | Solid Phase Microextraction - methods | Water - chemistry | Taste | Calibration | Water Pollutants, Chemical - analysis | Odorants - analysis | Comparative analysis | Mass spectrometry | Chromatography | Drinking water | Odor thresholds | Solid phase methods | Odors | 2-Methylisoborneol | Water analysis | Odor compounds | Solid phases | Ionone | Fiber coatings | Mass spectroscopy | Rivers | Gas chromatography | Organic chemistry | Water sampling | Ionic strength | Taste thresholds | Linearity | Geosmin | Headspace | Sensitivity enhancement | Organic chemicals
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19. Full Text Correction: Determining the role of redox-active materials during laser-induced water decomposition
by Kalus, Mark-Robert and Lanyumba, Riskyanti and Lorenzo-Parodi, Nerea and Jochmann, Maik A and Kerpen, Klaus and Hagemann, Ulrich and Schmidt, Torsten C and Barcikowski, Stephan and Gökce, Bilal
Physical Chemistry Chemical Physics, ISSN 1463-9076, 11/2019, Volume 21, Issue 43, pp. 24239 - 24239
Correction for 'Determining the role of redox-active materials during laser-induced water decomposition' by Mark-Robert Kalus et al. , Phys. Chem. Chem. Phys.... 
Decomposition
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20. Full Text New Concepts for the Determination of Oxidation Efficiencies in Liquid Chromatography-Isotope Ratio Mass Spectrometry
by Koster, D and Villalobos, IMS and Jochmann, MA and Brand, WA and Schmidt, TC
ANALYTICAL CHEMISTRY, ISSN 0003-2700, 04/2019, Volume 91, Issue 8, pp. 5067 - 5073
In liquid chromatography coupled to isotope ratio mass spectrometry (LC-IRMS), analytes are separated on an LC system and consecutively oxidized to CO2, which... 
COMBUSTION INTERFACE | SYSTEM | CHEMISTRY, ANALYTICAL | DISSOLVED ORGANIC-CARBON | AMINO-ACIDS | PERFORMANCE | GAS | NITROGEN | DELTA-C-13 ANALYSIS | SEPARATION | WATER | Analytical chemistry | Phosphoric acid | Organic carbon | Spectroscopy | Carbon dioxide | Mass spectroscopy | Liquid chromatography | Flow rates | Sulfates | Isotope ratios | Signal monitoring | Carbon | Radicals | Carbon isotopes | Chromatography | Flow velocity | Oxidation | Scientific imaging | Inorganic carbon | Sulfate | Mass spectrometry | Isotopes
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