Weggler, B.A.* ; Dubois, L.M.* ; Gawlitta, N. ; Gröger, T.M. ; Moncur, J.* ; Mondello, L.* ; Reichenbach, S.* ; Tranchida, P.* ; Zhao, Z.* ; Zimmermann, R. ; Zoccali, M.* ; Focant, J.F.*
A unique data analysis framework and open source benchmark data set for the analysis of comprehensive two-dimensional gas chromatography software.
J. Chromatogr. A 1635:461721 (2021)
Li, Z.M. ; Giesert, F. ; Vogt Weisenhorn, D.M. ; Main, K.M.* ; Skakkebæk, N.E.* ; Kiviranta, H.* ; Toppari, J.* ; Feldt-Rasmussen, U.* ; Shen, H.* ; Schramm, K.-W. ; de Angelis, M.
Determination of thyroid hormones in placenta using isotope-dilution liquid chromatography quadrupole time-of-flight mass spectrometry.
J. Chromatogr. A 1534, 85-92 (2018)
Michalke, B. ; Vinković-Vrček, I.*
Speciation of nano and ionic form of silver with capillary electrophoresis-inductively coupled plasma mass spectrometry.
J. Chromatogr. A 1572, 162-171 (2018)
Gruber, B. ; Schneider, J. ; Föhlinger, M. ; Buters, J.T.M. ; Zimmermann, R. ; Matuschek, G.
A minimal-invasive method for systemic bio-monitoring of the environmental pollutant phenanthrene in humans: Thermal extraction and gas chromatography - mass spectrometry from 1 µl capillary blood.
J. Chromatogr. A 1487, 254-257 (2017)
Gruber, B. ; Gröger, T.M. ; Harrison, D.* ; Zimmermann, R.
Vacuum ultraviolet absorption spectroscopy in combination with comprehensive two-dimensional gas chromatography for the monitoring of volatile organic compounds in breath gas: A feasibility study.
J. Chromatogr. A 1464, 141-146 (2016)
Sampsonidis, I.* ; Witting, M. ; Koch, W. ; Virgiliou, C.* ; Gika, H.G.* ; Schmitt-Kopplin, P. ; Theodoridis, G.A.*
Computational analysis and ratiometric comparison approaches aimed to assist column selection in hydrophilic interaction liquid chromatography-tandem mass spectrometry targeted metabolomics.
J. Chromatogr. A 1406, 145-155 (2015)
Koch, W. ; Forcisi, S. ; Lehmann, R. ; Schmitt-Kopplin, P.
Sensitivity improvement in hydrophilic interaction chromatography negative mode electrospray ionization mass spectrometry using 2-(2-methoxyethoxy)ethanol as a post-column modifier for non-targeted metabolomics.
J. Chromatogr. A 1361, 209-216 (2014)
Müller, C. ; Fonseca, J.R. ; Rock, T. ; Krauss-Etschmann, S. ; Schmitt-Kopplin, P.
Enantioseparation and selective detection of D-amino acids by ultra-high-performance liquid chromatography/mass spectrometry in analysis of complex biological samples.
J. Chromatogr. A 1324, 109-114 (2014)
Weggler, B.A. ; Gröger, T.M. ; Zimmermann, R.
Advanced scripting for the automated profiling of two-dimensional gas chromatography-time-of-flight mass spectrometry data from combustion aerosol.
J. Chromatogr. A 1364, 241-248 (2014)
Witting, M. ; Maier, T.V. ; Garvis, S.* ; Schmitt-Kopplin, P.
Optimizing a ultrahigh pressure liquid chromatography-time of flight-mass spectrometry approach using a novel sub-2μm core-shell particle for in depth lipidomic profiling of Caenorhabditis elegans.
J. Chromatogr. A 1359, 91-99 (2014)
Chen, S.L.* ; Hoene, M. ; Li, J.* ; Li, Y.J.* ; Zhao, X.J.* ; Häring, H.-U. ; Schleicher, E.D. ; Weigert, C. ; Xu, G.W.* ; Lehmann, R.
Simultaneous extraction of metabolome and lipidome with methyl tert-butyl ether from a single small tissue sample for ultra-high performance liquid chromatography/mass spectrometry.
J. Chromatogr. A 1298, 9-16 (2013)
Forcisi, S. ; Moritz, F. ; Kanawati, B. ; Tziotis, D. ; Lehmann, R.* ; Schmitt-Kopplin, P.
Liquid chromatography-mass spectrometry in metabolomics research: Mass analyzers in ultra high pressure liquid chromatography coupling.
J. Chromatogr. A 1292, 51-65 (2013)
Zarzycki, P.K.* ; Zarzycka, M.B.* ; Clifton, V.L.* ; Adamski, J. ; Głód, B.K.*
Low-parachor solvents extraction and thermostated micro-thin-layer chromatography separation for fast screening and classification of spirulina from pharmaceutical formulations and food samples.
J. Chromatogr. A 1218, 5694-5704 (2011)
Lintelmann, J. ; Franca, M.H. ; Hübner, E. ; Matuschek, G.
A liquid chromatography-atmospheric pressure photoionization tandem mass spectrometric method for the determination of azaarenes in atmospheric particulate matter.
J. Chromatogr. A 1217, 1636-1646 (2010)
Leon, C.* ; Rodriguez-Meizoso, I.* ; Lucio, M.* ; Garcia-Canas, V.* ; Ibanez, E.* ; Schmitt-Kopplin, P. ; Cifuentes, A.*
Metabolomics of transgenic maize combining Fourier transform-ion cyclotron resonance-mass spectrometry, capillary electrophoresis-mass spectrometry and pressurized liquid extraction.
J. Chromatogr. A 1216, 7314-7323 (2009)
Gröger, T.M. ; Schäffer, M. ; Pütz, M.* ; Ahrens, B. ; Drew, K.* ; Eschner, M.* ; Zimmermann, R.
Application of two-dimensional gas chromatography combined with pixel-based chemometric processing for the chemical profiling of illicit drug samples.
J. Chromatogr. A 1200, 8-16 (2008)
Zimmermann, R. ; Welthagen, W. ; Gröger, T.M.
Photo-ionisation mass spectrometry as detection method for gas chromatography. Optical selectivity and multidimensional comprehensive separations.
J. Chromatogr. A 1184, 296-308 (2008)
Englmann, M. ; Fekete, A. ; Kuttler, C. ; Frommberger, M. ; Li, X. ; Gebefügi, I. ; Fekete, J.* ; Schmitt-Kopplin, P.
The hydrolysis of unsubstituted N-acylhomoserine lactones to their homoserine metabolites. Analytical approaches using ultra performance liquid chromatography.
J. Chromatogr. A 1160, 184-193 (2007)
Vogt, L.* ; Gröger, T.M. ; Zimmermann, R.
Automated compound classification for ambient aerosol sample separations using comprehensive two-dimensional gas chromatography–time-of-flight mass spectrometry.
J. Chromatogr. A 1150, 2-12 (2007)
Welthagen, W.* ; Mitschke, S.* ; Mühlberger, F. ; Zimmermann, R.
One-dimensional and comprehensive two-dimensional gas chromatography coupled to soft photo ionization time-of-flight mass spectrometry: A two- and three-dimensional separation approach.
J. Chromatogr. A 1150, 54-61 (2007)
Li, X. ; Fekete, A. ; Englmann, M. ; Götz, C. ; Rothballer, M. ; Frommberger, M. ; Buddrus, K. ; Fekete, J.* ; Cai, C.* ; Schröder, P. ; Hartmann, A. ; Chen, G.* ; Schmitt-Kopplin, P.
Development and application of a method for the analysis of N-acylhomoserine lactones by solid-phase extraction and ultra high pressure liquid chromatography.
J. Chromatogr. A 1134, 186-193 (2006)
Lintelmann, J. ; Fischer, K. ; Matuschek, G.
Determination of oxygenated polycyclic aromatic hydrocarbons in particulate matter using high-performance liquid chromatography-tandem mass spectrometry.
J. Chromatogr. A 1133, 241-247 (2006)
Zhang, X.* ; Martens, D.* ; Krämer, P.M. ; Kettrup, A.* ; Liang, X.*
Development and application of a sol-gel immunosorbent-based method for the determination of isoproturon in surface water.
J. Chromatogr. A 1102, 84-90 (2006)
Zhang, X.* ; Martens, D.* ; Krämer, P.M. ; Kettrup, A.* ; Liang, X.*
On-line immunoaffinity column-liquid chromatography-tandem mass spectrometry method for trace analysis of diuron in wastewater treatment plant effluent sample.
J. Chromatogr. A 1133, 112-118 (2006)
Shellie, R.A.* ; Welthagen, W. ; Zrostlikova, J.* ; Spranger, J.* ; Ristow, M.* ; Fiehn, O.* ; Zimmermann, R.
Statistical methods for comparing comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry results: Metabolomic analysis of mouse tissue extracts.
J. Chromatogr. A 1086, 83-90 (2005)
Hauler, T.E. ; Boesl, U.* ; Kaesdorf, S.* ; Zimmermann, R.
Mobile resonance enhanced multiphoton ionisation-time-of-flight mass spectrometer with a novel hybrid laser desorption/molecular beam ion source for rapid detection of aromatic trace compounds from gas phase and solid samples.
J. Chromatogr. A 1058, 39-49 (2004)
Michalke, B.
Selenium speciation in human serum of cystic fibrosis patients compared to serum from healthy persons.
J. Chromatogr. A 1058, 203-208 (2004)
Michalke, B.
Manganese speciation using capillary electrophoresis-ICP-mass spectrometry.
J. Chromatogr. A 1050, 69-76 (2004)
Ping, G.* ; Zhang, L.* ; Zhang, W.* ; Schmitt-Kopplin, P. ; Kettrup, A. ; Zhang, Y.*
Separation of acidic and basic compounds in capillary electrochromatography with polymethacrylate-based monolithic columns.
J. Chromatogr. A 1035, 265-270 (2004)
Hoque, E. ; Wolf, M. ; Teichmann, G. ; Peller, E. ; Schimmack, W. ; Buckau, G.*
Influence of ionic strenght and organic modifier concentrations on characterization of aquatic fulvic and humic acids by high-performance size-exclusion chromatography.
J. Chromatogr. A 1017, 97-105 (2003)
Nischwitz, V. ; Michalke, B. ; Kettrup, A.
Speciation of Pt(II) and Pt(IV) in spiked extracts from road dust using on-line liquid chromatography-inductively coupled plasma mass spectrometry.
J. Chromatogr. A 1016, 223-234 (2003)
Schmitt-Kopplin, P. ; Junkers, J.
Capillary zone electrophoresis of natural organic matter.
J. Chromatogr. A 998, 1-20 (2003)
Welthagen, W. ; Schnelle-Kreis, J.* ; Zimmermann, R.
Search criteria and rules for comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry analysis of airborne particulate matter.
J. Chromatogr. A 1019, 233-249 (2003)
Xu, F.* ; Liang, X.* ; Lin, B.* ; Schramm, K.-W. ; Kettrup, A.
Estimation of soil organic partition coefficients : from retention factors measured by soil column chromatography with water as eluent.
J. Chromatogr. A 968, 7-16 (2002)
Whang, W.* ; Zhang, L. ; Ping, G.* ; Zhang, Y.* ; Kettrup, A.
Migration of neutral solutes by double stepwise gradient elution in capillary electrochromatography.
J. Chromatogr. A 922, 277-282 (2001)
Campa, C.* ; Schmitt-Kopplin, P. ; Cataldi, T.R.I.* ; Bufo, S.A.* ; Freitag, D. ; Kettrup, A.
Analysis of cyanogenic glycosides by micellar capillary electrophoresis.
J. Chromatogr. A 739, 95-100 (2000)
Menzinger, F. ; Schmitt-Kopplin, P. ; Freitag, D. ; Kettrup, A.
Analysis of agrochemicals by capillary electrophoresis.
J. Chromatogr. A 891, 45-67 (2000)
Wilhelm, M. ; Matuschek, G. ; Kettrup, A.
Determination of basic nitrogen-containing polynuclear aromatic hydrocarbons formed during thermal degradation of polymers by high-performance liquid chromatography-fluorescence detection.
J. Chromatogr. A 878, 171-181 (2000)
Michalke, B. ; Schramel, P.
Antimony speciation in environmental samples by interfacing capillary electrophoresis on-line to an inductively coupled plasma mass spetrometer.
J. Chromatogr. A 834, 341-348 (1999)
Schmitt-Kopplin, P. ; Burhenne, J.* ; Freitag, D. ; Spiteller, M.* ; Kettrup, A.
Development of capillary electrophoresis methods for the analysis of fluorquinolones and application to the study of the influence of humic substances on their photodegradation in aqueous phase.
J. Chromatogr. A 837, 253-265 (1999)
Lebuhn, M. ; Hartmann, A.
Method for the determination of indole-3-acetic acid and related compounds of L-tryptophan catabolism in soils.
J. Chromatogr. A 629, 255-266 (1993)
Boos, K.S.* ; Lintelmann, J. ; Kettrup, A.
Coupled-column high-performance liquid chromatographic method for the determination of 1-hydroxypyrene in urine of subjects exposed to polycyclic aromatic hydrocarbons.
J. Chromatogr. A 600, 189-194 (1992)
Bunzl, K.W.
Kinetics of differential ion-exchange processes in a finite solution volume.
J. Chromatogr. A 102, 169-180 (1974)