Prof. Dr. Peter-Th. Wilrich

peter_th_wilrich

Freie Universität Berlin

Fachbereich Wirtschaftswissenschaft

Forschungsschwerpunkt Statistik und Ökonometrie

Professor Emeritus

Adresse Garystr. 21
14195 Berlin
Telefon +49 30 838-54205
Fax +49 30 838-455791
E-Mail wilrich@wiwiss.fu-berlin.de

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The following Excel-programs are free software for the calculation of the MPN, the POD-LOD and the RLOD. They are distributed in the hope that they will be useful, but without warranty. If you are interested in receiving information on software updates, please subscribe to our newsletter.
Download: PODLOD_ver8.xls
EXCEL program for the estimation of the POD function and the LOD of a qualitative microbiological measurement method according to Wilrich, C., and P.-Th. Wilrich: Estimation of the POD function and the LOD of a qualitative microbiological measurement method. AOAC International 92 (2009) 1763 - 1772.
Download: MPN_ver4.xls
EXCEL program for the determination of the Most Probable Numbers (MPN), their standard deviations, confidence bounds and rarity values according to Jarvis, B., Wilrich, C., and P.-T. Wilrich: Reconsideration of the derivation of Most Probable Numbers, their standard deviations, confidence bounds and rarity values. Journal of Applied Microbiology 109 (2010), 1660 – 1667.
Download: RLOD_ver3.xlsm
EXCEL program for the estimation of the relative level of detection (RLOD) of two qualitative microbiological measurement methods according to Margaritescu, I., and Wilrich, P.-Th.:

Determination of the relative level of detection of a qualitative microbiological measurement method with respect to a reference measurement method. Journal of AOAC International 96 (2013) 1086 – 1091.