Multidimensional Chromatography coupled with Ion Mobility - Mass Spectrometry: Hype or Ripe?
BCEIA, Beijing, China, October 2017

LC+LC- and GC+GC-IM-qTOF-MS as a potential tool in non-target analysis
HPLC, Prague, Czech Republic, June 2017

Novel trends in mass spectrometry
Hitachi, Ibaraki, Japan, May 2017

2D-LC and 2D-GC coupled with IMS-qTOF-MS as a potential tool for the analysis of Traditional Chinese Herbs
International Congress on Analytical Sciences (ICAS), Hainan, China, May 2017

A four-dimensional separation method for the comprehensive analysis of natural products
ANAKON, Tübingen, Germany, April 2017

2D-Chromatography coupled to IM-qTOF-MS for the analysis of complex samples such as medicinal plants
5^th analytica conference, Hanoi, Vietnam, March 2017

New and unusual ionization methods for mass spectrometric analysis of nonpolar substances
Merck KGaA, Darmstadt, Germany, March 2017

A novel multi-dimensional separation approach for Lipidomics
10th analytica Anacon conference in Hyderabad, India, October 2016

LC+LC- and GC+GC-IM-qTOF-MS as a potential tool in non-target analysis
8th Shanghai International Symposium on analytical Chemistry in Shanghai, China, October 2016

Ion mobility spectroscopy as a powerful separation dimension in LC-MS
18th International Symposium on Advances in Extraction Technologies & 22nd International Symposium on Separation Sciences, Torun, Poland, July 2016

GC-IM-QTOF-MS – A new hyphenated separation technique for the analysis of complex samples
40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium, Riva del Garda, Italy, June 2016

The four separation dimensions of 2D-LC-IM-qTOF-MS as an optimal tool for non-target analysis
Agilent Lunch seminar at 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium, Riva del Garda, Italy, June 2016

Ion Mobility Spectrometry as a Powerful Separation Dimension in LC-MS
Analytica conference, Munich, Germany, May 2016

Ion Mobility Spectrometry as a Powerful Separation Dimension in LC-MS
Agilent 6560 Ion Mobility Q-TOF LC/MS Workshop, Beijing, China, April 2016

Ion Mobility Spectrometry as a Powerful Separation Dimension in LC-MS
Agilent 6560 Ion Mobility Q-TOF LC/MS Workshop, Shanghai, China, April 2016

Panel discussion with Christian Minz (Eurofins) and Dr. Alexander Schiffer (Sanofi-Aventis)
Agilent meeting "Win as one", Berlin, Germany, March 2016

The four separation dimensions of 2D-LC-IM-qTOF-MS as an optimal tool for non-target analysis
DPhG-lecture at University of Freiburg, Freiburg, Germany, February 2016

2D-LC-IM-MS as the ultimate tool in non-targeted analysis
2^nd European IM-MS User Meeting, Waldbronn, Germany, January 2016

A forgotten two-dimensional liquid chromatography approach coupled to an ion mobility-mass spectrometer
39^th DICP Symposium on Functional metabolomics, Dalian, China, November 2015

Ion mobility spectroscopy as a new separation dimension in LC-MS
Metablomics IMS-QTOF Meeting, Duesseldorf, Germany, October 2015

Ion mobility spectroscopy as a new separation dimension in LC-MS (Tutorial)
9^th analytica Anacon Conference, Hyderabad, India, October 2015

Personalized Medicine – or Metabolomics 2.0
Beijing-Humboldt Forum, Beijing, China, September 2015

New atmospheric pressure ion sources for mass spectrometry
Tsinghua University, Beijing, China, September 2015

2D-LC in combination with IMS and qTOF-MS for next generation metabolome analysis
Institute of Chemistry – Chinese Academy of Science (ICCAS), Beijing, China, September 2015

2D-LC in combination with IMS and qTOF-MS for next generation metabolome analysis
Peking University, Beijing, China, September 2015

Combination of the best of two worlds: LCxLC and IMS-QTOF-MS
Agilent Lunchseminar at 42^nd HPLC Conference, Geneva, Switzerland, June 2015

Combination of the best of two worlds: LCxLC and IMS-QTOF-MS
Agilent Ion Mobility Workshop at Swedish Metabolomics Center, Umea, Sweden, May 2015

Combination of the best of two worlds: LCxLC and IMS-QTOF-MS
4^th analytica Anacon Conference in Ho Chi Minh City, Vietnam, April 2015

Atmospheric-pressure laser ionization (APLI) in trace analysis: scientific findings, latest developments and outlook (part 1) Comprehensive two-dimensional liquid chromatography: Potential and Limitation (part 2)
Hanoi University of Science, Hanoi, Vietnam, April 2015

Comprehensive two-dimensional liquid chromatography: Theory and applications
2D-LC Symposium from Phenomenex, Frankfurt, Germany, March 2015

Combination of the best of two worlds: LCxLC and IMS-QTOF-MS
Pittcon 2015, New Orleans, USA, March 2015

Combination of the best of two worlds: LCxLC and IMS-QTOF-MS
Agilent Lunchseminar at 48^th Annual Conference of the German Mass Spectrometry Society (DGMS) 2015, Wuppertal, Germany, March 2015

Combination of the best of two worlds: LCxLC and MS-QTOF-MS
Agilent Infinity II Tour, Frankfurt, Germany, January 2015

Possible Quality control of modern and folk medicine
8^th Analytical Anacon Conference in Hyderabad, India, November 2014

A novel ultra-sensitive GC-ion source for an Orbitrap-MS
The 7^th Shanghai International Symposium on Analytical Chemistry, Shanghai, China, September 2014

Tutorial: Photo- and chemical ionization in atmospheric pressure mass spectrometry
30th International Symposium on Chromatography, Salzburg, Austria, September 2014

Comprehensive two-dimensional Chromatography (GCxGC and LCxLC) for metabolom analysis
8th International Conference on Breath Research & Cancer Diagnosis, Torun, Poland, July 2014

Product control of Chinese herbal medicine by comprehensive two-dimensional chromatography and novel ion sources
Fesenius Lecture of the GDCh, University of Bremen, Bremen, Germany, January 2014

Atmospheric-pressure laser ionization (APLI) in trace analysis: scientific findings, latest developments and outlook
Fesenius Lecture of the GDCh, University of Münster, Münster, Germany, December 2013

Comprehensive two-dimensional liquid chromatography: potential and limitations
Fesenius Lecture of the GDCh, Applied University of Aalen, Aalen, Germany, December 2013

How to find active agents in traditional folk medicine (Chinese Herbal Medicine)
7th analytica Anacon India, Mumbai, India, November 2013

Using of shift gradient in second dimension to improve the separation space in LCxLC
35th DICP Symposium on New Separation/Analytical Methods and Metabolomics, Dalian, China, October 2013

LCxLC with mixed-mode phases in the first dimension
15th BCEIA 2013, Beijing, China, October 2013

Atmospheric-pressure laser ionization (APLI) in trace analysis: scientific findings, latest developments and outlook
IUTA, Duisburg, Germany, October 2013

Comprehensive two-dimensional liquid chromatography: potential and limitations
ISAS, Summer school, Dortmund, Germany, October 2013

Atmospheric-pressure laser ionization (APLI) in trace analysis: scientific findings, latest developments and outlook
Fesenius Lecture of the GDCh, University of Rostock, Rostock, Germany, July 2013

LCxLC analysis of Chinese Herbal Medicine
HPLC 2013, Amsterdam,The Netherlands, June 2013

Comprehensive two-dimensional liquid chromatography: potential and limitations
Fesenius Lecture of the GDCh, University of Gießen, Gießen, Germany, June 2013

Comprehensive two-dimensional liquid chromatography: potential and limitations
Fesenius Lecture of the GDCh, University of Marburg, Marburg, Germany, May 2013

Quality control of Chinese Herbal Medicine with Comprehensive Two-Dimensional Chromatography and DIP-APCI-MS
Analytica Vietnam, Ho Chi Minh City, Vietnam, April 2013

Product control in traditional Chinese medicine: necessary and feasible?
Inaugural Lecture at the University of Duisburg-Essen, Essen, Germany, April 2013

Comprhensive two-dimensional liquid chromatography: potential and limitations
Gerhard-Hesse-Prize Lecture, Anakon 2013, Essen, Germany, March 2013

DIP-APCI: A new tool for product analysis
Agilent-User meeting, Berlin, Germany, December 2012

Quality control of Chinese Herbal Medicine with comprehensive two-dimensional chromatography and DIP-APCI-MS
Analytica China, Shanghai, China, October 2012

DIP-APCI: A new ion source
Sino-German Satellite symposium, Shanghai, China, October 2012

Quality control of Chinese Herbal Medicine
Sino-German workshop, Dalian, China, October 2012

Theory, benefits, limitations and potential of GCxGC
Novia: User forum gas chromatography, Bad Soden, Germany, May 2012

Comprehensive two-dimensional analytical methods and new ionization techniques
Johannes Gutenberg-University, Mainz, Germany, May 2012

Analysis of Chinese Herbal Medicine (CHM) with Comprehensive Two-Dimensional Chromatography
Analytica Conference, Munich, Germany, April 2012

Development and optimization of a DIP-APCI-ion source
SIM-Seminar, Oberhausen, Germany, March 2012

The use of ionic liquid GC-columns in GCxGC-MS
SUPELCO Seminar gas chromatography, Hamburg, Germany, March 2012

The use of ionic liquid GC-columns in GCxGC-MS
SUPELCO Seminar gas chromatography, Berlin, Germany, February 2012

Atmospheric-pressure laser ionization (APLI) in trace analysis: scientific findings, latest developments and outlook
Technical University of Munich, Munich, Germany, November 2011

Quantitative MALDI-(TOF)MS analysis of synthetic polymers and peptides
14^th Beijing Conference and Exhibition on Instrumental Analysis, Beijing, China, October 2011

A simple method for the determination of peak capacity in comprehensive two-dimensional liquid chromatography
HPLC 2011, Dalian, China, October 2011

Analysis of organic compounds in complex matrices with comprehensive separation techniques and modified ion sources
Analytical forum BASF, Ludwigshafen, Germany, October 2011

Analysis of DNA adducts: Development of a high-performance analytical platform to meet the challenges in human health
Annual meeting of the Association pour la Recherche sur les Nicotianées (ARN), Paris, France, March 2011

Mass spectrometrical determination of biomarkers in complex matrices
University of Duisburg-Essen, Essen, Germany, March 2011

What is the research group of Prof. Schmitz doing in Wuppertal?
Doktorandenseminar, Hohenroda, Germany, January 2011

Epigenetic determinations of cloned calfs and twins with MEKC-LIF
CE-Forum at the Research Center Jülich, Jülich, Germany, October 2010

Analysis of traditional chinese medicine with comprehensive separation techniques (LCxLC and GCxGC)
BIT's 1^st Annual Tetra-Congress of MolMed-2010, Shanghai, China, October 2010 (Chair of  Session Metabolomics and Metabonomics Approaches in Biomarker Discovery)

Analysis of traditional chinese medicine with comprehensive separation techniques (LCxLC and GCxGC)
Sino-German-Symposia at Analytica China, Shanghai, China, September 2010

Analysis of Radix Angelicea sinensis with chiral GCxGC-qMS and the influence of aristolochic acid on the methylation level in rats
Closing workshop of the Sino-German Cooperation Research Group for Separation and Analysis of Complex Samples, Dalian, China, January 2010

Theory of multi-dimensional separation techniques
Shimadzu-Workshop, Duisburg, Germany, October 2009

Research Topics in the Department of Analytical Chemistry at the University of Wuppertal
BGFA -Forschungsinstitut für Arbeitsmedizin der Deutschen Gesetzlichen Unfallversicherung, Bochum, Germany, September 2009

Analysis of TCMs and identification of new biological active drugs
Workshop of the Sino-German Cooperation Research Group for Separation and Analysis of Complex Samples, Karlsruhe, Germany, July 2009

A universal ionisation label for the APLI-(TOF)MS analysis of small molecules and polymers
University of Saarland, Saarbrücken, Germany, May 2009

A universal ionisation label for the APLI-(TOF)MS analysis of small molecules and polymers
ANAKON 2009, Berlin, Germany, March 2009

A universal ionisation label for the APLI-(TOF)MS analysis of small molecules and polymers
19th DICP Symposium on Frontier of Bioanalytical Techniques: Challenge of Metabolomics and other -omics, Dalian, China, November 2008

Atmospheric-Pressure Laser Ionization (APLI): A novel ionization method for the ultra-sensitive determination of aromatic compounds
Hygiene-Institute Gelsenkirchen, Gelsenkirchen, Germany, September 2008

Use of APLI-MS and CE-LIF for processing actual analytical questions
University of Wuppertal, Wuppertal, Germany, June 2008

Atmospheric-Pressure Laser Ionization (APLI): A novel ionization method for the ultra-sensitive determination of aromatic compounds
BIOSPEC Colloquium at the Research Center Jülich, Jülich, Germany, May 2008

Novel methods for ultra-trace analyses: APLI-MS and CE-LIF
University of Saarland, Saarbrücken, Germany, May 2008

Novel methods for ultra-trace analyses: APLI-MS and CE-LIF
Institute of Analytical Chemistry at the University of Regensburg, Regensburg, Germany, November 2007

Determination of the genome-wide DNA-methylation level with capillary electrophoresis
37th Annual meeting of the European Environmental Mutagen Society, Basel, Switzerland, September 2007

Determination of epigenetic changes (DNA-methylation level) at chemical carcinogenesis by CE-LIF
Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany, June 2007

Ultra-sensitive determination of polycyclic aromatic compounds with atmospheric-pressure laser ionization (APLI) as an interface for GC-MS
30th International Symposium on Capillary Chromatography, Dalian, China, June 2007

Ultra-sensitive determination of polycyclic aromatic compounds with atmospheric-pressure laser ionization (APLI) as an interface for LC and GC-MS
Faculty of Science, Hong Kong Baptist University, Hong Kong, China, June 2007

Atmospheric-Pressure Laser Ionization (APLI) - A novel ionization method for coupling LC and GC with mass spectroscopy
LC-MS Workshop at the annual meeting of the German Society on Mass Spectroscopy, Bremen, Germany, March 2007

Determination of epigenetic changes (DNA-methylation level) at chemical carcinogenesis by CE-LIF
Chemiedozententagung, Halle, Germany, March 2007

Determination of the DNA-methylation level with CE-LIF
Department of Animal Science, University of Adelaide, Adelaide, Australia, December 2006

Atmospheric-Pressure Laserionization (APLI): A novel ionization method for trace analysis of lipophilic aromatic compounds
Institute of Instrumental Analysis at the University of Duisburg-Essen, Essen, November 2006

Determination of the DNA methylation level with capillary electrophoresis and laser-induced fluorescence detection (CE-LIF)
Workshop on Biomarker of Exposure and Cancer Risk: DNA Damage and DNA Adduct Detection & 6th GUM-32P-Postlabelling Workshop, Heidelberg, Germany, September 2006 (Chair of  Session "VII")

Atmospheric-Pressure Laserionization (APLI): A novel ionization method for trace analysis of lipophilic aromatic compounds
Bayer CropScience, Monheim, Germany, September 2006

Analysis and molecular cancer epidemiology
Bayer HealthCare AG, Wuppertal, Germany, April 2006

Novel methods for ultra-trace analysis: APLI-MS, GCxGC, CE-LIF
Institute of Analytical Chemistry at the Philipps-University Marburg, Marburg, Germany, April 2006

Atmospheric-Pressure Laser Ionization (APLI): Mass spectrometric methods for the determination of aromatic hydrocarbons
GSF - National Research Center for Environment and Health Institute for Ecological Chemistry, Munich, Germany, February 2006

Determination of the DNA-Methylation level by Capillary Electrophoresis
Institute of Pharmaceutical and Medical Chemistry, University of Münster, Münster, Germany, October 2005

Atmospheric-Pressure Laser-Ionization (APLI) Mass Spectrometry for Determination of Aromatic Hydrocarbons
11th Beijing Conference and Exhibition on Instrumental Analysis, Beijing, China, October 2005

Panel discussion: Bachelor/Master = A successful structure for the following generation of chemists?
GDCh-Annual Meeting, Düsseldorf, Germany, September 2005

Atmospheric-Pressure Laser Ionization: A novel ionization method for LC-MS
ANAKON 2005, Regensburg, Germany, March 2005

Analysis of endogenous DNA-damages in mitochondrial and genomic DNA by ultra-sensitive fluorescence spectroscopy
Chemiedozententagung, Munich, Germany, March 2005

CE-LIF analysis of endogenous damage in mitochondrial and genomic DNA
Biomarkers of Harm, Tobacco Toxicity, and Emerging Cancer Patterns and Etiology, St. Louis, USA, February 2005

Comprehensive Two-Dimensional Gas Chromatography of Polycyclic Aromatic Hydrocarbons in Olive Oil
7th Sino-German Symposium on Chromatography, Chongqing, China, October 2004

DNA adduct analysis and determination of the methylation level with capillary electrophoresis and LIF
Center of Pharmacy at the University of Groningen, Groningen, The Netherlands, May 2004

Determination of carcinogens in complex matrices by comprehensive two-dimensional gas chromatography
German Cancer Research Center Heidelberg (DKFZ), Heidelberg, Germany, March 2004

Analysis of DNA-adducts, apurinic sites and 5-methylcytosines by CE-LIF
5th National Postlabeling-Workshop, Berlin, Germany, April 2003 (Chair of session "Application areas")

CE-LIF - A useful tool for the investigation of molecular and metabolic mechanisms of cancerogenesis
16th International Symposium on Microscale Separations and Analysis (HPCE), San Diego, USA, January 2003

Determination of the Methylation level in tumor cells by capillary electrophoresis and laser-induced fluorescence detection
Walther-Straub-Institute of Pharmacology and Toxicology at the Ludwig-Maximilians-University of Munich, Munich, Germany, December 2002

Determination of DNA-adducts as biomarkers of chemical carcinogenesis by capillary electrophoresis
Working committee "Analysis of biological materiall" of the "Arbeitsstoffkommission (DFG)" in Bonn, Bonn, Germany, November 2002

Methods for the determination of biomarkers of chemical carcinogenesis and oxidative stress
Institute of Human Diet and Science of Nutrition at the Christian-Albrechts-University of Kiel, Kiel, Germany, June 2002

Determination of DNA-adducts as biomarkers of chemical carcinogenesis by capillary electrophoresis
Chemiedozententagung, Cologne, Germany, March 2002

Development of an analytical method for the determination of DNA-adducts by capillary electrophoresis
Pharmaceutical Faculty at the Ruprecht-Karls-University of Heidelberg, Heidelberg, Germany, July 2001

Determination of DNA-adducts as biomarkers of chemical carcinogenesis by CE-LIF
Institute for laser physics at the University of Bielefeld, Bielefeld, Germany, March 2001

Use of capillary electrophoresis in modern analysis
November AG, Erlangen, Germany, November 2000

Capillary electrophoresis in modern analysis  ▪  Development of an automatic genotoxicity test by analysis of fluorescence-labelled DNA-adducts
Schering AG, Berlin, Germany, October 2000

Analysis of poly clonal antibodies by fluorescent labelling and cIEF with multi-laser-induced fluorescence detection
Fresenius HemoCare, Munich, Germany, September 2000

Development of an automatic genotoxicity test by analysis of fluorescent labeled DNA-adducts
Institute for Biological Research (INBIFO GmbH), Cologne, Germany, August 2000

Analysis of Fluorescent labeled DNA-Adducts by Micellar Electrokinetic Chromatography
3th Asia-Pacific International Symposium on Capillary Electrophoresis and Related Microscale Techniques (APCE), Hong Kong, China, June 2000

Analysis of Fluorescent labeled DNA-Adducts by Micellar Electrokinetic Chromatography
13th International Symposium on High Performance Capillary Electrophoresis & Related Microscale Techniques (HPCE), Saarbrücken, Germany, February 2000 

Development of a fluorescence-based method to determine DNA-adducts by capillary electrophoresis
International Workshop of Food Preparation Methods and Cancer Risk, Heidelberg, Germany, November 1999 

Postlabeling and Capillary Electrophoresis
4th National Postlabeling-Workshop, Wuppertal, Germany, October 1999 

Analyse von Lipidhydroperoxiden mit HPLC und CE
Analytica Conference 98, Munich, Germany, April 1998