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