Institut Kirchhoff Berlin GmbH

Publications

Publications in 2018

Positionspapiere - Informationen und Arbeitshilfen

September 2018 | K. Schöberl, R. Habernegg, P. Fecher, A. Stuckmann | Posterbeitrag | 47. Deutscher Lebensmittelchemikertag

Automated determination of glyphosate, AMPA and glufosinate

Mai 2018 | J. Konetzki, M.Nestola, S. Rothmeier, E. Becker, A. Hentschel, Dr. E. Kirchhoff | Posterbeitrag | 12. EPRW

Fully automated dilution workstation for pesticides working standard mixtures

Mai 2018 | S. Rothmeier, M.Nestola, A. Hentschel, F. Fischer, E. Becker, Dr. E. Kirchhoff | Posterbeitrag | 12. EPRW

Phthalimide - a metabolite of Folpet or an artefact

Mai 2018 | A. Hentschel, J. Lötner, S. Rothmeier, Dr. E. Kirchhoff | Posterbeitrag | 12. EPRW

Minimierung von MOSH & MOAH am Beispiel des Rohstoffes Tee - Erkenntnisse und Maßnahmen aus drei Ländern und elf Teegärten

April 2018 | E. Becker, O. Kunder| Vortrag | B. Behr´s Verlag

3-MCPD und Glycidylester in Lebensmitteln - eine vollautomatische analytische Methode

März 2018 | S. Kühn | Vortrag | FHI, federatie van technologiebranches

Publications in 2017

3-MCPD und Glycidyl-Fettsäureester - Automatisierte Bestimmung der Fettsäreester

Dezember 2017 |K. Wenzel, S. Kühn, E. Becker, K. Vossmann, B. Matthäus | Zeitschriftenbeitrag | 46. Deutscher Lebensmittelchemikertag

Determination of polycyclic aromatic hydrocarbons with LC-LC-GC-MS/MS

September 2017 |K. Wenzel, T. Uber, M. Nestola, E. Becker, E. Kirchhoff | Posterbeitrag | 46. Deutscher Lebensmittelchemikertag

Automated determination of 3-monochloropropanediol, glycidol and their esters in foodstuff with GC-MS/MS

September 2017 |E. Schulz, K. Wenzel, M. Nestola, E. Becker, E. Kirchhoff | Posterbeitrag | 46. Deutscher Lebensmittelchemikertag

Mineralölbestandteile in Lebensmitteln - Kontaminationsrisiken erkennen, rechtssicher handeln

August 2017 | E. Becker, N. Kolb, B. Riemer, K. Schönfelder, M. Warbug | Fachbuchbeitrag | B. Behr´s Verlag

Simultane Bestimmung der Vitamine B1, B2 und B6 in Säuglingsnahrung mittels LC-MS/MS

März 2017 | A. Thellmann | Vortrag | 7. Berliner LC-MS/MS Symposium

MOSH, MOAH und POSH - Mineralölbestandteile in Lebensmitteln und Kosmetika

Februar 2017 | Dr. H.-U. Melchert | Zeitschriftenbeitrag | LABO online

 

Publications in 2016

Vitamins B1, B2 and B6 in baby food – Simultaneous determination using LC-MS/MS

September 2016 | A Thellmann | O Meier | E Becker | Dr E Kirchhoff | J Dahlmann | H Möller-Santner | poster contribution, 45th German Food Chemists’ Day

Photo analysis and simulation of the digestion of folates

August 2016 | C Ringling | Weihenstephan Science Centre, Faculty of Nutrition, Land Use and the Environment | doctoral thesis

Developing a multimethod for determining vitamins A, D and E

July 2016 | T Bergold | Technical University Berlin | Scientific final paper

Optimising and validating a chromatographical method for determining maltose in sugar-free soft caramel toffees

July 2016 | Z Bilostotska | Technical University Berlin | diploma thesis

Analytics of anorganic arsenic species in rice and rice products

May 2016 | T Bückmann | Technical University Berlin | scientific final paper

Comparison of clean-up methods (GPC, QuEChERS) for the analysis of cocoa and cocoa products on selected groups of pesticides and relevant metabolites

April 2016 | S Rothmeier, A Hentschel, G Krümpel, Dr E Kirchhoff | 11th European Pesticide Residue Workshop

Mineral oil elements in foodstuffs

April 2016 | E Becker | paper, B. Behr’s Verlag

Publications in 2015

Determination of mineral oil hydrocarbons (MOH) in different foodstuffs – A complex mixture, a complex problem

November 2015 | E Schulz | paper, Instrument Solutions / Axel Semrau GmbH

Determining pyrrolizidine alkaloids in foodstuffs using online SPE-LC/MS/MS coupling

October 2015 | J Konetzki | presentation, Spark users’ meeting ‘Online SPE expertise’, Axel Semrau

Determining saturated and unsaturated fatty acids in foodstuffs using NIR spectroscopy | L Tais, A Braun, A Niemöller, E Becker, Dr E Kirchhoff |

September 2015 | L Tais, A Braun, A Niemöller, E Becker, Dr E Kirchhoff | poster contribution, 44th German Food Chemists’ Day

Determining polycyclic aromatic hydrocarbons in cocoa and cocoa products using LC-LC-GC-MS

September 2015 | E Schulz, V Koospal, M Nestola, E Becker, Dr E Kirchhoff | poster contribution, 44th German Food Chemists’ Day

Determination of pyrollizidine alkaloids using online SPE-LC-MS/MS

September 2015 | J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 44th German Food Chemists’ Day

Unconventional contaminants in grain and grain-based products – Modern analytics, ‘new’ compounds

April 2015 | E Becker | poster contribution, 20th ‘Healthy grain for a healthy diet’ international conference

LMIV – Labelling of non-prepackaged goods from the viewpoint of a private commercial laboratory

June 2015 | J Schwab | presentation, 75th working conference – Working group of experts working in food hygiene and food deriving from animals (ALTS)

Universal route to polycyclic aromatic hydrocarbon analysis in foodstuffs: Two-dimensional heart-cut liquid chromatography – gas chromatography – mass spectrometry (LC-LC-GS-MS)

June 2015 | M Nestola, R Friedrich, P Bluhme, TC Schmidt | magazine article, Analytical Chemistry

Publications in 2014

Determining mineral oil hydrocarbons in foodstuffs – Stage by stage control in chocolate manufacture

September 2014 | E Schulz, E Becker, Dr E Kirchhoff | poster contribution, 43rd German Food Chemists’ Day

Pitfalls in the analysis of pyrrolizidine alkaloids

September 2014 | J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 43rd German Food Chemists’ Day

Food labelling and nutritional values – EU requirements and their practical implementation – Use of accredited testing methods for establishing nutritional values

September 2014 | J Schwab, Dr E Kirchhoff | presentation, pro agro, SIBB region, ZAB

Determining mineral oil hydrocarbons in foodstuffs – Stage by stage control in chocolate manufacture

April 2014 | E Schulz, E Becker, Dr E Kirchhoff | poster contribution, Austrian Food Chemists’ Day 2014, Vienna

Chapter 2: HPLC-GC coupling in practice: Basis, application examples and outlook

April 2014 | E Becker, M Nestola | article in specialist book, Der HPLC-Experte, ed: Stavros Kromidas

Mineral oil hydrocarbons – Interlaboratory comparison on determining them in foodstuffs and packaging materials

March 2014 | E Becker | magazine article, Analytik Special, DLR Deutsche Lebensmittelrundschau (German Foodstuffs Review)

Determining mineral oil components in food and food packaging – Results of an interlaboratory comparison

February 2014 | E Becker | presentation, BDSI (Federal Association of the German Confectionery Industry) status seminar

Tea and honey – Old foods with new challenges; Pyrrolizidine alkaloids between scandalisation and trivialisation – Pitfalls in the analysis of pyrrolizidine alkaloids

February 2014 | Dr E Kirchhoff, E Becker, Prof Dr W-R Stenzel | Status seminar and presentation, Institut Kirchhoff Berlin GmbH

An eventful life as an analyst – A portrait of Erhard Kirchhoff

February 2014 | Dr E Kirchhoff, J Häseler | magazine article, DLR Deutsche Lebensmittelrundschau (German Foodstuffs Review)

Publications in 2013

Benzene in marzipan

November 2013 | E Becker | presentation, BDSI (Federal Association of the German Confectionery Industry) status seminar

Pitfalls in the analytic of mineral oils – Are the currently available methods ready for standardisation, Residues of food contact materials in food

November 2013 | E Becker | presentation, Akademie Fresenius conference

Advances in the analysis of food allergens

September 2013 | H Köhler, J Konetzki, C von Bargen, J Brockmeyer, E Becker, Dr E Kirchhoff | poster contribution, 42nd German Food Chemists’ Day

Determining mineral oil contaminations in tea samples

September 2013 | M Nestola, E Schulz, E Becker, Dr E Kirchhoff, A Mantegazza | poster contribution, 42nd German Food Chemists’ Day

Mineral oil contaminations of vegetable oils and fats

June 2013 | E Schulz | presentation, Axel Semrau Seminar

Mineral oil hydrocarbons in foodstuffs – Stage by stage control in chocolate manufacture

May 2013 | E Schulz | presentation, BLC AGM, Berlin-Brandenburg regional association

Mineral oil hydrocarbons in foodstuffs – Stage by stage control in chocolate manufacture

February 2013 | E Becker | presentation, X-tended X-pert qualification workshop on foodstuff control analysis

Chapter 5, page 79 et seq: Accreditation of test laboratories

February 2013 | Dr E Kirchhoff | article in specialist book ‘Cooking oils and fats | The law, sensory properties, analysis, Matthäus/Fiebig (eds), Erling Verlag’

Mineral oil analysis: Stage by stage control in confectionery manufacture

January 2013 | E Becker | presentation, BDSI (Federal Association of the German Confectionery Industry) status seminar

Publications in 2012

Food allergens and their analysis

September 2012 | J Hilmes, A Jahn, J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 41st German Food Chemists’ Day

Analysis of steviol glycosides in complex food matrices

September 2012 | J Jaworska, J Konetzki, E Becker, Dr E Kirchhoff, LW Kroh | poster contribution, 41st German Food Chemists’ Day

Determining the content of raw protein, water and fat in sausage products using near-infrared spectroscopy (NIR)

September 2012 | A Braun, E Becker, Dr E Kirchhoff | poster contribution, 41st German Food Chemists’ Day

Determing the sterol distribution in fats and oils – LC-GC-FID with automatic sample processing

September 2012 | M Nestola, P Tablack, E Becker, Dr E Kirchhoff | poster contribution, 41st German Food Chemists’ Day

Lactose in low-lactose and lactose-free foodstuffs – Determination using LC-MS/MS

September 2012 | I Diener, J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 41st German Food Chemists’ Day

Determining mineral oil residues in foodstuffs using online coupled LC-GC in routine analysis

June 2012 | E Becker | magazine article, DLR Deutsche Lebensmittelrundschau (German Foodstuffs Review)

Determination of mineral oil hydrocarbons in foodstuffs – Contamination by vegetable oils

June 2012 | E Becker | presentation, DGF (German Society of Fats Science)

Determining MOSH and MOAH using LC-GC coupling in routine work

April 2012 | E Becker | presentation, ANALYTICA

Complex mixtures: Automated MOSH/MOAH determination using LC-GC coupling

April 2012 | E Becker | magazine article, Q&More

Publications in 2011

Initisol in baby food – LC-MS/MS analysis of the entire inositol content

October 2011 | J Konetzki, E Becker, Dr E Kirchhoff | magazine article, DLR Deutsche Lebensmittelrundschau (German Foodstuffs Review)

Determining MOSH and MOAH using LC-GC coupling in routine work

October 2011 | E Schulz | presentation, Axel Semrau seminar

Mineral oil residues in foodstuffs – Determination using online coupled LC-GC-FID

September 2011 | S Förster, R Friedrich, E Becker, Dr E Kirchhoff | poster contribution, 40th German Food Chemists’ Day

LC-MS/MS analysis of the entire inositol content in milk powder-based baby food

September 2011 | J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 40th German Food Chemists’ Day

Bacteria identification using MALDI-TOF-MS in food analytics

September 2011 | I Huber, Dr J Hilmes, K Grünwald, Dr E Kirchhoff, U Busch | poster contribution, 40th German Food Chemists’ Day

Publications in 2010

Determining free and whole choline in baby food using LC-MS/MS

September 2010 | G Krümpel, J Konetzki, E Becker, Dr E Kirchhoff | poster contribution, 39th German Food Chemists’ Day

Chapter 9, page 225 et seq: Accreditation of official and non-official test laboratories in the foodstuff and animal feed industries

2010 | Dr E Kirchhoff | contribution to specialist book, Handbuch für Lebensmittelchemiker, W Frede (ed), Springer Verlag

Developing a qPCR process to detect pathogenic legionella (Legionella pneumophilia) with FIT-PNA probes – Developing a suitable nucleic acid-based detection system for detecting dead, living and VBNC-stage legionella

April 2010 | Dr J Hilmes | dissertation, Berlin Humboldt University

Publications in 2009

LC-MS/MS analysis of free and bound L-carnitine in baby food

September 2009 | J Konetzki | magazine article, DLR specialist magazine (German Foodstuff Review Carnitine (Special analysis issue)

Determining legionella in drinking water using real-time PCR

September 2009 | B Dollase, E Becker, Dr E Kirchhoff | poster contribution, 38th German Food Chemists’ Day

Determining relative apricot amount in marzipan using real-time PCR

September 2009 | Dr T Gerhard, E Becker, Dr E Kirchhoff | poster contribution, 38th German Food Chemists’ Day

Validation of methods for determining vitamin C in milk powder-based infant food

September 2009 | C Boernecke, E Becker, Dr E Kirchhoff | poster contribution, 38th German Food Chemists’ Day

Creating, optimising and validating a method for determining the peroxide value using the Metrohm Titrino 716

September 2009 | T Zwerg | bachelor thesis, University of Bremerhaven

LC-MS/MS analysis of free and bound Carnitine in baby food

April 2009 | J Konetzki | presentation, conference of the north and north-east associations of the Food Chemistry Society (LChG)

Chapter 9: Validating examination procedures

January 2009 | E Becker, Dr E Kirchhoff | contribution to specialist book, Handbuch für Lebensmittelchemiker

Publications in 2008 

LC-MS/MS analysis of free and bound L-carnitine in baby food

September 2008 | J Konetzki, M Boernecke, E Becker, Dr E Kirchhoff | poster contribution, 37th German Food Chemists’ Day

Publications in 2007

Summary of fibre determination in accordance with section 64 of the German Foodstuffs and Commodities Act – Definition, classification and effect of dietary fibre, determination and analysis

2007 | A Engelmann | final dissertation, University of Anhalt (Technical College)

Optimising and validating the determination of water-soluble synthetic colourants in foodstuffs using HPLC and UV/VIS detection

November 2007 | S Horst | diploma thesis, Technical University of Applied Sciences Berlin

Lupins – Evidence in foodstuffs and animal feed, content in foodstuffs and animal feed, behaviour in the processing chain, differentating types of lupin seeds

October 2007 | Dr A Klink | Research and development project | ‘STROBL Naturmühle, Linz-Ebelsberg | b.i.s. analytics, Linz-Ebelsberg, Austria’

Determining theobromine and caffeine in pastries, cocoa, cocoa products and drinks containing caffeine

March 2007 | S Horst | practical work experience, Technical University of Applied Sciences Berlin

Development and validation of an HPLC method for determining Cumarin

March 2007 | E Becker | presentation, conference of the north association of the Food Chemists’ Society (LChG)

Publications in 2006

Establishing the sulphur content of apple leaves using various application strategies from Kumulus® WG: Can the use of wettable sulphur in organic apple cultivation be reduced?

2006 | M Scholz | diploma thesis, International University Institute Zittau, professorship for environmental biotechnology

Development of an enzyme immunoassay for detecting the herbicide mecoprop in drinking and ground water, on the basis of antibodies in the eggs of laying hens

December 2006 | W Weber | magazine contribution, Acta hydrochimica et hydrobiologica

Current options for differentiating between marzipan and persipan

November 2006 | Dr E Kirchhoff | presentation, BDSI (Federal Association of the German Confectionery Industry

Publications in 2005

Accreditation of official and non-official test laboratories in the foodstuff and animal feed industries

October 2005 | Dr E Kirchhoff | contribution to specialist book, Springer Verlag

Determining pesticide residues in fruit and vegetables

April 2005 | J Konetzki, A Hentschel, E Becker, Dr E Kirchhoff | poster contribution

Assessment of possibility to determine folates in food and sweets with different methods

2005 | B Braha, A Hentschel, E Becker, Dr E Kirchhoff | poster contribution

Publications 2000–2004

Validating the determination of vitamin B1 (thiamine) with HPLC

September 2004 | A Hentschel, E Becker, Dr E Kirchhoff | poster contribution, 33rd German Food Chemists’ Day

Molecular biological typification of salmonella isolates – Contamination of chocolates manufactured by August Storck KG with salmonella – Presumption of a joint source of contamination on the basis of retained samples of finished products and from environmental samples

September 2003 | T Gerhard | final report, August Storck KG

Development and validation of a method for simultaneously determining residues of active ingredients chlorpropham, imazalil and thiabendazole on potatoes, resulting from post-harvest treatment

July 2001 | C Zepperitz | diploma theseis, Technical University of Dresden, Institute for Food Chemistry

Publications 1990–1999

Various presentations on the topics of quality management and accreditation

1996–1999 | Dr E Kirchhoff | presentation, AKS/DAP

Evidence and determination of apricot kernels in marzipan using isoelectric focusing and a molecular biological process

April 1998 | Dr E Kirchhoff, W Weber, T Kleinert et al. | magazine article, Deutsche Lebensmittel-Rundschau (German Foodstuffs Review)

Determining ochratoxin A in grains, malt and beer after enriching and separation with immunoaffinity columns followed by high-performance liquid chromatography with fluorescence detection

1997 | A Thellmann, W Weber | magazine article, DLR specialist magazine (German Foodstuff Review)

Quantification of three phenoxy carbonic acids from water and soil eluates using gas chromatograpy and mass-selective detector after solid-phase extraction and derivatisation with pentafluorobenzylbromide

July 1997 | C Schörnik | diploma thesis | Technical University of Applied Sciences Berlin, faculty of chemistry and biotechnology

Determining vitamin B12 in vitaminised fruit gums using a competitive binding protein assay

January 1997 | G Sterczyk | diploma thesis, Technical University of Applied Sciences Berlin, faculty of food chemistry

Modern biochemical testing procedures as an instrument of quality assurance

April 1997 | Dr E Kirchhoff | presentation, BDSI (Federal Association of the German Confectionery Industry, Bonn

Determination of phenol and substituted phenols in water after solid-phase extraction using gas chromatography and mass-selective detector

June 1996 | A Pahl | diploma thesis, Technical University of Applied Sciences Berlin, faculty of chemistry and biotechnology

Hygienic aspects when analysing samples of cooked ham available on sale

June 1996 | K Reichardt | diploma thesis | Technical University of Applied Sciences Berlin, food technology

Ochratoxin A in coffee and other foodstuffs – Incidence, exposure situation in Germany, limit values, sampling, analysis

1995 | Dr E Kirchhoff, Dr W Weber

Determining ochratoxin A in beer and grains using high pressure liquid chromatography after enriching with immunoaffinity columns

July 1995 | A Thellmann | diploma thesis, Technical University of Applied Sciences Berlin, faculty of technical chemistry

Food inspection – Sovereign task or service – From the viewpoint of independent experts – Today’s role and position of the independent expert as a contribution to the discussion on the food monitoring situation

March 1995 | Dr E Kirchhoff | presentation, 8th German Food Legislation Day, Wiesbaden

Creation of a test method for determining phenols in water and soil samples, using solid-phase extraction

February 1995 | A Pahl | practical seminar report, Technical University of Applied Sciences Berlin, faculty of chemistry

Quality assurance measures in meat-processing operations

January 1995 | H Saldsieder | diploma thesis, Technical University of Applied Sciences Berlin, faculty of food technology

Determining aflatoxin B1 in foodstuffs

February 1994 | A Thellmann | practical seminar report, Technical University of Applied Sciences Berlin, faculty of chemistry

Isolation of vitamins from the B-complex and determining them using the HPLC method

August 1993 | I Dietrich | diploma thesis, Technical University of Applied Sciences Berlin, faculty of food technology

Determining organic materials in various water types – TOC, TIC, DOC, CSB and BSB5 regulations

July 1993 | A Hentschel | project work

Publications 1978–1989

Modellreaktionen zur Maillard-Reaktion - Umsetzung von Phenylalanin mit reduzierenden Zuckern und ausgewählten Zuckerabbauprodukten im Laborautoklaven

1988 | Dr. J. Kunert-Kirchhoff | Doktorarbeit, TU Berlin

Vergleichende Untersuchungen an konventionell und kurzzeitgerösteten Kaffees

Februar 1984 | Klaus Rubach, Dr. Erhard Kirchhoff | Zeitschriftenbeitrag, KTM Kaffee & Tee Markt

Bestimmung der Süßstoffe Saccharin und Cyclamat mittels Capillar-Isotachophorese

1983 | K. Rubach, P. Offizorz | Zeitschriftenbeitrag, Deutsche Lebensmittel-Rundschau

Quantitative Bestimmung verschiedener Kaffeephenole

April 1983 | J. Kunert | Praktikantenbericht, Institut für Lebensmittelchemie TU Berlin

Isolierung und Charakterisierung der Lopoxygenasen der Erdnuss (Arachis Hypogaea)

1980 | E. Kirchhoff | Doktorarbeit, Institut für Lebensmittelchemie TU Berlin

Isotachophoretische Bestimmung von Konservierungsstoffen

1980 | K. Rubach, Ch. Breyer, E. Kirchhoff | Zeitschriftenbeitrag, Zeitschrift für Lebensmittel-Untersuchung und -Forschung

Zur Differenzierung von Marzipan und Persipan

September 1980 | E. Kirchhoff, K. Rubach, Ch. Breyer | Zeitschriftenbeitrag, "Institut für Lebensmittelchemie TU Berlin | LKB Instrument GmbH"

Dünnschicht-Elektrofokussierung in Polyacrylamid zur Bestimmung der Tierart durch Proteindifferenzierung

Oktober 1978 | K. Rubach, E. Kirchhoff, Chr. Breyer | Zeitschriftenbeitrag, "Institut für Lebensmittelchemie TU Berlin | LKB Instrument GmbH"

Nachweis von Sojaöl in Sonnenblumenöl

November 1974 | E. Kirchhoff | Diplomarbeit | Institut für Lebensmittelchemie TU Berlin

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