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Modern and clean testing laboratory for proficiency testing

Scientific publications

We regularly publish

We regularly publish new expertise on the topics of proficiency testing, reference materials and quality assurance.

(22) Milena Ritter, Derck Schlettwein, Ulrich Leist: Specific migration of caprolactam and infrared characteristics of a polyamide/polyethylene composite film for food packaging under conditions of long-term storage before use. Packaging Technology and Science; 2020;1-14; DOI: 10.1002/pts.2531

(21) Leist, Ulrich: Quality assurance in the microbiological laboratory. In: F.Brill, S. Krüger, R. Zschaler: Quality assurance for cleaning, disinfection and sterilization – Recognized test methods for hygiene; Behr’s Verlag, Hamburg, 74th update – May 2019

(20) Leist, Ulrich: Quality assurance in the microbiological laboratory. In: Schütze, Burkhard (eds.): Mikrothek – Mikrobiologische Analysen von Lebensmitteln sicher beurteilen, 48th update delivery. Behr’s Verlag, Hamburg, page reference, 2018

(19) Milena Funk, Hedda Hillmann, Ralph Derra & Ulrich Leist: Comparability of mineral oil testing for dry food and cardboard samples – Perspectives from different PT rounds, Food Additives & Contaminants: Part A Vol. 35, Iss. 2, 2018, DOI: 10.1080/19440049.2017.1400185

(18) M. Funk, U. Leist, M. Biedermann, K. Grob. Interlaboratory comparison: taped test on the barrier efficiency of itnernal bags used in boxes of recycled paperboard. J Consum Prot Food Saf (2017) 12:37-39.

(17) M. Funk, D. Schlettwein, U. Leist. Migration Characteristics under Long-term Storage and a Combination of UV and Heat Exposure of Poly (Amide)/Poly (Ethylene) Composite Films for Food Packaging. Packaging Technology and Science 2016; 29(6): 275-352, DOI: 10.1002/pts. 2204.

(16) F. Schugg, H. Hermannsen, Interlaboratory comparisons and reference materials for quality assurance in laboratories, Ernährung aktuell / der Lebensmittelbrief, May/June 2016, pages 26 – 28

(15) F. K. Lücke, W. Bremser, J. Kalus, U. Leist, “Influence of freeze storage and thawing on aerobic colony count and Escherichia coli count in minced meat” Rundschau für Fleischhygiene und Lebensmittelüberwachung 5, 2014, 172-173

(14) Leist, U.; Walter, E.; Bremser, W. (2013): Reference materials for the detection of Enterobacter: Contribution of instability to measurement uncertainty. In: VDi Wissensforum GmbH (Hrsg.): Determining measurement uncertainty in a practical way. VDI Reports 2216, Braunschweig, November 5-6, 2013, Düsseldorf: VDI Verlag, pp. 227-240.

(13) Funk, M.; Leist, U. (2013): Quality assurance in organoleptics: How to “calibrate” a panel. In: VDi Wissensforum GmbH (eds.): Determining measurement uncertainty in a practice-oriented way. VDI Reports 2216, Braunschweig, November 5-6, 2013, Düsseldorf: VDI Verlag, pp. 261-272.

(12) W. Bremser, F. K. Lücke, C. Urmetzer, E. Fuchs, U. Leist, “An approach to integrated data assessment in a proficiency test on the enumeration of Escherichia coli “, journal of applied microbiology 110, 2010, S 128-138

(11) S. Theisen, R. Hänsch, L. Kothe, U. Leist, R. Galensa, “A Fast and Sensitive HPLC Method for Sulfite Analysis in Food Based on a Plant Sulfite Oxidase Biosensor”, Journal of Biosensors and Bioelectronics, 26, 1, 2010, 175-181

(10) M. Funk, B. Leist, U. Leist, "Latest achievements to improve the quality of triangular sensory testing”, Ernährung aktuell / der Lebensmittelbrief, 4, 2009, S22

(9) U. Leist, “Uncertainty of measurement in microbiological analysis”, Food Hygiene&Praxis, 03, 2009, S9

(8) U. Leist , M. Ernhofer, “no fear of the interlaboratory test”, GIT Laboratory Journal, 6, 2008, S592

(7) U. Leist, “Homogeneity test of sensory reference materials in the ranking test”, Ernährung aktuell / der Lebensmittelbrief, 2, 2008, S43

(6) B. Gehl, U. Leist, V. Zielasek, M. Bäumer, P. Nickut, K. Al-Shamery, V. Aleksandrovic, H. Weller, Rev. Sci. Instr., 77, 2006, 083902, Selected for Virtual Journal of Nanoscale Science & Technology, September 2006 „Design of a UHV-compatible RF plasma source and its application to self-assembled layers of CoPt3-nanoparticles“

(5) U. Leist, C. Bartsch “Against operational stress situations”, QZ Quality and reliability, 6, 2005, S25

(4) U. Leist, W. Ranke, K. Al-Shamery “Water adsorption and growth of Ice on epitaxial Fe3O4(111), FeO(111) and Fe2O3(biphase)“, Physikalische Chemie Chemische Physik, 5, 2003 S 2435 – 2441.

(3) U. Leist, A. Winkler, “Multi purpose mobile sample holder” patent application: EP 02023175.9

(2) U. Leist, A. Winkler, K. Al-Shamery, “Multi purpose mobile sample holder” (Review of scientific instruments, Vol 74, 11, 2003, 4772)

(1) U. Leist, dissertation (University of Oldenburg) 2002