Norbert Hertkorn

Norbert Hertkorn

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Norbert Hertkorn

Publications by authors named "Norbert Hertkorn"

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Molecular differences between water column and sediment pore water SPE-DOM in ten Swedish boreal lakes.

Water Res 2020 Mar 22;170:115320. Epub 2019 Nov 22.

Helmholtz Zentrum Munich, German Research Center for Environmental Health, Research Unit Analytical Biogeochemistry (BGC), Ingolstädter Landstraße 1, P. O. Box 1129, D-85758, Neuherberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2019.115320DOI Listing
March 2020

Preferential Sorption of Tannins at Aluminum Oxide Affects the Electron Exchange Capacities of Dissolved and Sorbed Humic Acid Fractions.

Environ Sci Technol 2020 Feb 22;54(3):1837-1847. Epub 2020 Jan 22.

Environmental Mineralogy and Chemistry, Center for Applied Geosciences , University of Tübingen , Hölderlinstr. 12 , D-72074 Tübingen , Germany.

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http://dx.doi.org/10.1021/acs.est.9b04733DOI Listing
February 2020

Molecular change of dissolved organic matter and patterns of bacterial activity in a stream along a land-use gradient.

Water Res 2019 Nov 27;164:114919. Epub 2019 Jul 27.

Helmholtz-Centre for Environmental Research - UFZ, Department of Lake Research, Brückstraße 3a, D-39114, Magdeburg, Germany.

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http://dx.doi.org/10.1016/j.watres.2019.114919DOI Listing
November 2019

Molecular characterization of particulate organic matter in full scale anaerobic digesters: An NMR spectroscopy study.

Sci Total Environ 2019 Oct 18;685:1107-1115. Epub 2019 Jun 18.

Department of Thematic Studies-Environmental Change and Biogas Research Center, Linköping University, 581 83 Linköping, Sweden.

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http://dx.doi.org/10.1016/j.scitotenv.2019.06.264DOI Listing
October 2019

Systems chemical analytics: introduction to the challenges of chemical complexity analysis.

Faraday Discuss 2019 Aug;218(0):9-28

HelmholtzZentrum Muenchen, German Research Center for Environmental Health, Department of Environmental Sciences, Ingolstädter Landstraße 1, D-85764 Neuherberg, Germany.

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http://dx.doi.org/10.1039/c9fd00078jDOI Listing
August 2019

The chemodiversity of algal dissolved organic matter from lysed Microcystis aeruginosa cells and its ability to form disinfection by-products during chlorination.

Water Res 2019 May 27;155:300-309. Epub 2019 Feb 27.

Helmholtz Zentrum Muenchen, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany; Technische Universität München, Chair of Analytical Food Chemistry, Freising-Weihenstephan, Germany.

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http://dx.doi.org/10.1016/j.watres.2019.02.030DOI Listing
May 2019

Yellowstone Hot Springs are Organic Chemodiversity Hot Spots.

Sci Rep 2018 09 20;8(1):14155. Epub 2018 Sep 20.

Helmholtz Zentrum Muenchen, German Research Center for Environmental Health, Neuherberg, Germany.

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http://dx.doi.org/10.1038/s41598-018-32593-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147864PMC
September 2018

Pretreatment of anaerobic digester samples by hydrochloric acid for solution-state H and C NMR spectroscopic characterization of organic matter.

Chemosphere 2018 May 5;199:201-209. Epub 2018 Feb 5.

Department of Thematic Studies-Environmental Change and Biogas Research Center, Linköping University, 581 83 Linköping, Sweden.

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http://dx.doi.org/10.1016/j.chemosphere.2018.02.015DOI Listing
May 2018

Extensive processing of sediment pore water dissolved organic matter during anoxic incubation as observed by high-field mass spectrometry (FTICR-MS).

Water Res 2018 02 7;129:252-263. Epub 2017 Nov 7.

Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2017.11.015DOI Listing
February 2018

Redox Conditions Affect Dissolved Organic Carbon Quality in Stratified Freshwaters.

Environ Sci Technol 2017 Dec 17;51(23):13705-13713. Epub 2017 Nov 17.

UFZ-Helmholtz Centre for Environmental Research , Department of Lake Research, Brückstrasse 3a, 39114 Magdeburg, Germany.

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http://dx.doi.org/10.1021/acs.est.7b04194DOI Listing
December 2017

A new approach for evaluating transformations of dissolved organic matter (DOM) via high-resolution mass spectrometry and relating it to bacterial activity.

Water Res 2017 10 5;123:513-523. Epub 2017 Jul 5.

Helmholtz-Centre for Environmental Research UFZ, Department of Lake Research, Brückstraße 3a, D-39114 Magdeburg, Germany.

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http://dx.doi.org/10.1016/j.watres.2017.07.008DOI Listing
October 2017

How representative are dissolved organic matter (DOM) extracts? A comprehensive study of sorbent selectivity for DOM isolation.

Water Res 2017 06 19;116:316-323. Epub 2017 Mar 19.

Helmholtz Zentrum München, German Research Center for Environmental Health, Research Unit Analytical Biogeochemistry (BGC), Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2017.03.038DOI Listing
June 2017

Differences in DOM of rewetted and natural peatlands - Results from high-field FT-ICR-MS and bulk optical parameters.

Sci Total Environ 2017 May 16;586:770-781. Epub 2017 Feb 16.

Helmholtz Centre for Environmental Research - UFZ, Brückstrasse 3a, 39114 Magdeburg, Germany.

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http://dx.doi.org/10.1016/j.scitotenv.2017.02.054DOI Listing
May 2017

Picocyanobacteria and deep-ocean fluorescent dissolved organic matter share similar optical properties.

Nat Commun 2017 05 17;8:15284. Epub 2017 May 17.

Institute of Marine and Science Technology, Shandong University, Joint Lab of Microbial Oceanography at QNLMST, Wenhai Road, Qingdao 266237, China.

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http://dx.doi.org/10.1038/ncomms15284DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5442323PMC
May 2017

Land-based salmon aquacultures change the quality and bacterial degradation of riverine dissolved organic matter.

Sci Rep 2017 03 3;7:43739. Epub 2017 Mar 3.

Helmholtz-Centre Munich, German Research Center for Environmental Health, Department of Environmental Sciences, Ingolstädter Landstraße 1, P. O. Box 1129, D-85758 Neuherberg, Germany.

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http://dx.doi.org/10.1038/srep43739DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5335611PMC
March 2017

Comprehensive structure-selective characterization of dissolved organic matter by reducing molecular complexity and increasing analytical dimensions.

Water Res 2016 Dec 14;106:477-487. Epub 2016 Oct 14.

Helmholtz Zentrum München, German Research Center for Environmental Health, Research Unit Analytical Biogeochemistry (BGC), Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2016.10.034DOI Listing
December 2016

Prenylfuranocoumarin-HMGA-flavonol glucoside conjugates and other constituents of the fruit peels of Citrus hystrix and their anticholinesterase activity.

Phytochemistry 2016 Jul 16;127:38-49. Epub 2016 Mar 16.

Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ramkhamhaeng University, Hua Mark, Bangkapi, Bangkok 10240, Thailand. Electronic address:

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http://dx.doi.org/10.1016/j.phytochem.2016.03.009DOI Listing
July 2016

Proposed Guidelines for Solid Phase Extraction of Suwannee River Dissolved Organic Matter.

Anal Chem 2016 07 23;88(13):6680-8. Epub 2016 Jun 23.

Research Unit Analytical Biogeochemistry (BGC), Helmholtz Zentrum München, German Research Center for Environmental Health , Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.

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http://dx.doi.org/10.1021/acs.analchem.5b04501DOI Listing
July 2016

Geochemistry of Dissolved Organic Matter in a Spatially Highly Resolved Groundwater Petroleum Hydrocarbon Plume Cross-Section.

Environ Sci Technol 2016 06 17;50(11):5536-46. Epub 2016 May 17.

Helmholtz Zentrum München-German Research Center for Environmental Health , Research Unit Analytical BioGeoChemistry, D-85764 Neuherberg, Germany.

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http://dx.doi.org/10.1021/acs.est.6b00849DOI Listing
June 2016

Molecular formula assignment for dissolved organic matter (DOM) using high-field FT-ICR-MS: chemical perspective and validation of sulphur-rich organic components (CHOS) in pit lake samples.

Anal Bioanal Chem 2016 Apr 16;408(10):2461-9. Epub 2016 Feb 16.

Helmholtz Zentrum München, German Research Center for Environmental Health; Research Unit Analytical BioGeoChemistry (BGC), Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.

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http://dx.doi.org/10.1007/s00216-016-9341-2DOI Listing
April 2016

High-field FTICR-MS data evaluation of natural organic matter: are CHON5S2 molecular class formulas assigned to (13)C isotopic m/z and in reality CHO components?

Anal Chem 2015 Oct;87(19):9563-6

Helmholtz Zentrum München , German Research Center for Environmental Health, Reasearch Unit Analytical BioGeoChemistry (BGC), Ingolstädter Landstraße 1, 85764 Neuherberg, Germany.

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http://dx.doi.org/10.1021/acs.analchem.5b02549DOI Listing
October 2015

Marine sequestration of carbon in bacterial metabolites.

Nat Commun 2015 Mar 31;6:6711. Epub 2015 Mar 31.

Department of Biological Sciences and Marine Science Program, University of South Carolina, Columbia, South Carolina 29208, USA.

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http://dx.doi.org/10.1038/ncomms7711DOI Listing
March 2015

High-field FT-ICR mass spectrometry and NMR spectroscopy to characterize DOM removal through a nanofiltration pilot plant.

Water Res 2014 Dec 16;67:154-65. Epub 2014 Sep 16.

Mass Spectrometry Laboratory / Organic Pollutants, IDAEA-CSIC; Jordi Girona 18-26, 08034 Barcelona, Spain.

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http://dx.doi.org/10.1016/j.watres.2014.08.046DOI Listing
December 2014

Understanding molecular formula assignment of Fourier transform ion cyclotron resonance mass spectrometry data of natural organic matter from a chemical point of view.

Anal Bioanal Chem 2014 Dec 31;406(30):7977-87. Epub 2014 Oct 31.

UFZ Helmholtz Centre for Environmental Research, Brueckstrasse 3a, 39114, Magdeburg, Germany,

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http://dx.doi.org/10.1007/s00216-014-8249-yDOI Listing
December 2014

Changes in dissolved organic matter during the treatment processes of a drinking water plant in Sweden and formation of previously unknown disinfection byproducts.

Environ Sci Technol 2014 Nov 27;48(21):12714-22. Epub 2014 Oct 27.

Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science , Solomons, Maryland 20688, United States.

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http://dx.doi.org/10.1021/es504349pDOI Listing
November 2014

Oil biodegradation. Water droplets in oil are microhabitats for microbial life.

Science 2014 Aug 7;345(6197):673-6. Epub 2014 Aug 7.

School of the Environment, Washington State University, Pullman, WA 99164, USA. Center for Astronomy and Astrophysics, Technical University Berlin, 10623 Berlin, Germany.

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http://www.sciencemag.org/cgi/doi/10.1126/science.1252215
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http://dx.doi.org/10.1126/science.1252215DOI Listing
August 2014

Molecular and structural characterization of dissolved organic matter during and post cyanobacterial bloom in Taihu by combination of NMR spectroscopy and FTICR mass spectrometry.

Water Res 2014 Jun 20;57:280-94. Epub 2014 Mar 20.

Helmholtz Zentrum Muenchen, German Research Center for Environmental Health, Institute of Ecological Chemistry, Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.watres.2014.02.051DOI Listing
June 2014

Variations of DOM quality in inflows of a drinking water reservoir: linking of van Krevelen diagrams with EEMF spectra by rank correlation.

Environ Sci Technol 2012 May 7;46(10):5511-8. Epub 2012 May 7.

Helmholtz Centre for Environmental Research-UFZ , Brückstrasse 3a, 39114 Magdeburg, Germany.

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http://dx.doi.org/10.1021/es300345cDOI Listing
May 2012

Determination of stilbene derivatives in Burgundy red wines by ultra-high-pressure liquid chromatography.

Anal Bioanal Chem 2011 Sep 13;401(5):1513-21. Epub 2011 Apr 13.

EA 581 EMMA, Institut Universitaire de la vigne et du vin-Jules Guyot, Université de Bourgogne, Rue Claude Ladrey, 21078 Dijon, France.

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http://link.springer.com/10.1007/s00216-011-4879-5
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http://dx.doi.org/10.1007/s00216-011-4879-5DOI Listing
September 2011

Metabolic influence of Botrytis cinerea infection in champagne base wine.

J Agric Food Chem 2011 Jul 8;59(13):7237-45. Epub 2011 Jun 8.

Laboratoire d'Oenologie et Chimie Appliquée, Université de Reims , Reims Cedex 2, France.

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http://dx.doi.org/10.1021/jf200664tDOI Listing
July 2011

Mechanisms of humic acids degradation by white rot fungi explored using 1H NMR spectroscopy and FTICR mass spectrometry.

Environ Sci Technol 2011 Apr 15;45(7):2748-54. Epub 2011 Mar 15.

The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel.

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http://dx.doi.org/10.1021/es1036139DOI Listing
April 2011

Molecular characterization of effluent organic matter identified by ultrahigh resolution mass spectrometry.

Water Res 2011 Apr 17;45(9):2943-53. Epub 2011 Mar 17.

Urban Water Research Center, Department of Civil and Environmental Engineering, University of California, Irvine, CA, USA.

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http://dx.doi.org/10.1016/j.watres.2011.03.016DOI Listing
April 2011

Hydrolysis of mefenpyrdiethyl: an analytical and DFT investigation.

Anal Bioanal Chem 2010 Nov 12;398(5):2325-34. Epub 2010 Sep 12.

Department of BioGeoChemistry and Analytics, Helmholtz Center München, German Research Center for Environmental Health, Institute of Ecological Chemistry, Ingoldstaedter Landstraße 1, 85764 Neuherberg, Germany.

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http://dx.doi.org/10.1007/s00216-010-4154-1DOI Listing
November 2010

Novel software for data analysis of Fourier transform ion cyclotron resonance mass spectra applied to natural organic matter.

Rapid Commun Mass Spectrom 2010 Oct;24(19):2831-7

The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel.

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http://dx.doi.org/10.1002/rcm.4709DOI Listing
October 2010

Analysis of the unresolved organic fraction in atmospheric aerosols with ultrahigh-resolution mass spectrometry and nuclear magnetic resonance spectroscopy: organosulfates as photochemical smog constituents.

Anal Chem 2010 Oct;82(19):8017-26

Department of BioGeoChemistry and Analytics, Institute of Ecological Chemistry, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany.

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http://dx.doi.org/10.1021/ac101444rDOI Listing
October 2010

Preparative free-flow electrophoretic offline ESI-Fourier transform ion cyclotron resonance/MS analysis of Suwannee River fulvic acid.

Electrophoresis 2010 Jun;31(12):2070-9

Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Ecological Chemistry, Neuherberg, Germany.

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http://dx.doi.org/10.1002/elps.200900726DOI Listing
June 2010

High molecular diversity of extraterrestrial organic matter in Murchison meteorite revealed 40 years after its fall.

Proc Natl Acad Sci U S A 2010 Feb 16;107(7):2763-8. Epub 2010 Feb 16.

Helmholtz-Zentrum Muenchen-German Research Center for Environmental Health, Institute for Ecological Chemistry, Ingolstaedter Landstrasse 1, D-85764 Oberschleissheim, Germany.

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http://dx.doi.org/10.1073/pnas.0912157107DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2840304PMC
February 2010

Automated microextraction sample preparation coupled on-line to FT-ICR-MS: application to desalting and concentration of river and marine dissolved organic matter.

Anal Bioanal Chem 2009 Oct 14;395(3):797-807. Epub 2009 Aug 14.

Department of Analytical Chemistry, Marie Curie Building (Annex), Campus de Rabanales, University of Cordoba, 14071, Cordoba, Spain.

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http://dx.doi.org/10.1007/s00216-009-3025-0DOI Listing
October 2009

Interactions of diuron with dissolved organic matter from organic amendments.

Sci Total Environ 2009 Jul 2;407(14):4297-302. Epub 2009 May 2.

UMR 7618 INRA-CNRS-Université, Laboratoire de Biogéochimie et Ecologie des Milieux Continentaux, Centre INRA Versailles Grignon, Thiverval-Grignon, France.

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http://dx.doi.org/10.1016/j.scitotenv.2009.04.021DOI Listing
July 2009

The chemodiversity of wines can reveal a metabologeography expression of cooperage oak wood.

Proc Natl Acad Sci U S A 2009 Jun 26;106(23):9174-9. Epub 2009 May 26.

Equipe Eau Molécules actives Macromolécules Activité EA 581, Institut Universitaire de la Vigne et du Vin, Université de Bourgogne, Dijon, France.

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http://www.pnas.org/cgi/doi/10.1073/pnas.0901100106
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http://dx.doi.org/10.1073/pnas.0901100106DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2695122PMC
June 2009

Expressing forest origins in the chemical composition of cooperage oak woods and corresponding wines by using FTICR-MS.

Chemistry 2009 ;15(3):600-11

EA 581 EMMA, Institut Universitaire de la Vigne et du Vin-Jules Guyot, Université de Bourgogne, Rue Claude Ladrey, 21078 Dijon, France.

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http://dx.doi.org/10.1002/chem.200801181DOI Listing
February 2009

In vitro antagonism of an actinobacterial Kitasatospora isolate against the plant pathogen Phytophthora citricola as elucidated with ultrahigh resolution mass spectrometry.

J Microbiol Methods 2008 Oct 5;75(2):188-95. Epub 2008 Jun 5.

Department of Terrestrial Ecogenetics, Institute of Soil Ecology, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Germany.

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http://dx.doi.org/10.1016/j.mimet.2008.05.028DOI Listing
October 2008

Targeted borate complex formation as followed with electrospray ionization Fourier transform ion cyclotron mass spectrometry: monomolecular model system and polyborate formation.

Rapid Commun Mass Spectrom 2008 Oct;22(20):3119-29

Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Institute of Ecological Chemistry, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany.

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http://dx.doi.org/10.1002/rcm.3713DOI Listing
October 2008

Design of quinonoid-enriched humic materials with enhanced redox properties.

Environ Sci Technol 2005 Nov;39(21):8518-24

Department of Chemistry, Lomonosov Moscow State University, 119992 Moscow, Russia.

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http://dx.doi.org/10.1021/es050915jDOI Listing
November 2005

Analysis of N-acylhomoserine lactones after alkaline hydrolysis and anion-exchange solid-phase extraction by capillary zone electrophoresis-mass spectrometry.

Electrophoresis 2005 Apr;26(7-8):1523-32

Institute of Ecological Chemistry, Rhizosphere Biology Group, GSF-Research Center for Environment and Health Neuherberg, Germany.

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http://dx.doi.org/10.1002/elps.200410365DOI Listing
April 2005

Flavonol 3-O-glycoside hydroxycinnamoyltransferases from Scots pine (Pinus sylvestris L.).

FEBS J 2005 Mar;272(6):1415-24

Institute of Biochemical Plant Pathology, GSF-Research Center for Environment and Health, Neuherberg, Germany.

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http://dx.doi.org/10.1111/j.1742-4658.2005.04574.xDOI Listing
March 2005

Separation of selected humic degradation compounds by capillary electrochromatography with monolithic and packed columns.

Electrophoresis 2003 Mar;24(6):958-69

National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

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http://doi.wiley.com/10.1002/elps.200390139
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http://dx.doi.org/10.1002/elps.200390139DOI Listing
March 2003

Fluoranthene metabolism in Mycobacterium sp. strain KR20: identity of pathway intermediates during degradation and growth.

Microbiology 2001 Oct;147(Pt 10):2783-2794

Technical University Munich, Chair of Ecological Chemistry and Environmental Analytics, D-85350 Freising, Germany2.

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http://dx.doi.org/10.1099/00221287-147-10-2783DOI Listing
October 2001