P. Gowik

发表

A top-down in-house validation based approach for the investigation of the measurement uncertainty using fractional factorial experiments

S. Uhlig, B. Jülicher, P. Gowik, 1999 .

Performance of a matrix-comprehensive in-house validation study by means of an especially designed software

S. Uhlig, P. Gowik, W. Radeck, 2003 .

Assessment of detection methods in trace analysis by means of a statistically based in-house validation concept

S. Uhlig, B. Jülicher, P. Gowik, 1998 .

Taking laboratory uncertainties into account in the Hampel estimator

S. Uhlig, P. Gowik, B. Colson, 2018, Accreditation and Quality Assurance.

Requirements to food analysis in the age of global food trade

P. Gowik, 2015, Journal für Verbraucherschutz und Lebensmittelsicherheit.

Is I2 or MeCN the better base to coordinate the iodine monocation, I+? The hard–soft acid—base principle in preparative inorganic chemistry

T. Klapötke, P. Gowik, 1990 .

Validation of binary non-targeted methods: mathematical framework and experimental designs

S. Uhlig, P. Gowik, K. Nichani, 2021, bioRxiv.

Towards a Mathematical Framework for Method Validation and Performance Characteristics of Non-targeted Methods for Food Authenticity

F. Ulberth, S. Kemmlein, S. Uhlig, 2021 .

Requirements to food analysis in the age of global food trade

P. Gowik, 2015, Journal für Verbraucherschutz und Lebensmittelsicherheit.

Development of Non-Targeted Mass Spectrometry Method for Distinguishing Spelt and Wheat

G. Huschek, S. Kemmlein, S. Uhlig, 2022, Foods.

Trends in the identification of organic residues and contaminants: EC regulations under revision

L. Stolker, F. André, P. Fürst, 2001 .

Bildung von μ-oxo-bis(η5-cyclopentadienyldichlorotitan(IV)) aus η5-cyclopentadienyl-tris(methylselenolato)titan(IV)

T. Klapötke, P. Gowik, J. Pickardt, 1990 .

Reactions of the novel [Cp2MoCl2]2+ cation with organothiolates to give molybdenocene (VI) dithiolates and the oxidation of Cp2Mo(SR)2 to give [Cp2Mo(SR)2]2+

T. Klapötke, P. Gowik, 1990 .

Synthesis and ring inversion of the first hafnocene ditellurolene chelate: [(η5-C5H5)2Hf(1,2-Te2C6H4)]

T. Klapötke, H. Köpf, P. Gowik, 1987 .

Reaction of [Ti(cp)2(AsF6)2] (cp=η-C5H5) toward S4N4 and Se4N4 : identification in solution of [Ti(cp)2(S4N4)] [AsF6]2 ; synthesis and characterization of [Ti(cp)2F(AsF6)], [Ti(cp)2F2]•AsF3 and [Ti(cp)F3]•AsF3

T. Klapötke, P. Gowik, S. Cameron, 1991 .

Reactions of the Novel (Cp2MoCl2)2+ Cation with Organothiolates to Give Molybdenocene(VI) Dithiolates and the Oxidation of Cp2Mo(SR)2 to Give (Cp2Mo(SR)2)2+.

T. Klapoetke, P. Gowik, 1990 .

Synthesis and Ring Inversion of the First Hafnocene Ditellurolene Chelate: ((η5-C5H5)2Hf(1,2-Te2C6H4)).

T. Klapoetke, P. Gowik, H. Koepf, 1988 .

Dichlorobis(η5‐cyclopentadienyl)rhenium(VII)‐tris(hexafluoroantimonat): Synthese des ersten Rhenocen(VII)‐dichlorid‐Kations

T. Klapötke, I. Tornieporth-Oetting, P. Gowik, 1989 .

Reactivity of Cp2Ti(AsF6)2 Towards S4N4, Se4N4 and As2Me4

T. Klapötke, T. S. Cameron, P. Gowik, 1992 .

The Raman spectrum of tetraselenium tetranitride Se4N4

T. Klapötke, P. Gowik, 1990 .

Quantitative oxidation of organovanadium(IV) and -niobium(IV) complexes: synthesis of Cp2V(SbF6)2, [Cp2VCl2][AsF6], and [Cp2V(AsF6)2][AsF6]. Crystal structure of [Cp2NbCl2][SbF6]

T. Klapoetke, P. Gowik, J. Pickardt, 1989 .

Validated determination of eight antibiotic substance groups in cattle and pig muscle by HPLC/MS/MS.

P. Gowik, C. Stachel, D. Bohm, 2011, Journal of AOAC International.

The validation of methods for regulatory purposes in the control of residues.

Petra Gowik, P. Gowik, 2009, Journal of chromatography. A.

Multi-residue method for non-steroidal anti-inflammatory drugs in plasma using high-performance liquid chromatography-photodiode-array detection. Method description and comprehensive in-house validation.

S. Uhlig, B. Jülicher, P. Gowik, 1998, Journal of chromatography. B, Biomedical sciences and applications.

Endogenous and synthetic steroids in bovine urine--preparation of in-house reference material, stability studies and results of a proficiency test.

R. Hackenberg, P. Gowik, C. Stachel, 2012, Analytica chimica acta.

Developing new reference materials for effective veterinary drug-residue testing in food-producing animals

Hendrik Emons, Franz Ulberth, Petra Gowik, 2006 .

Multi-method for the determination of antibiotics of different substance groups in milk and validation in accordance with Commission Decision 2002/657/EC.

P. Gowik, C. Stachel, D. Bohm, 2009, Journal of chromatography. A.

Matrix-comprehensive in-house validation and robustness check of a confirmatory method for the determination of four nitrofuran metabolites in poultry muscle and shrimp by LC-MS/MS.

P. Gowik, C. Stachel, C. Bock, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Validation of a confirmatory method for the determination of residues of four nitrofurans in egg by liquid chromatography-tandem mass spectrometry with the software InterVal.

P. Gowik, C. Stachel, C. Bock, 2007, Analytica chimica acta.

Confirmatory method for the determination of streptomycin in apples by LC-MS/MS.

P. Gowik, C. Stachel, D. Bohm, 2010, Analytica chimica acta.

Treatment of turkeys with nitroimidazoles: Impact of the selection of target analytes and matrices on an effective residue control

P. Gowik, C. Stachel, J. Polzer, 2004 .

Development and in-house validation of an LC-MS/MS method for the determination of stilbenes and resorcylic acid lactones in bovine urine

P. Gowik, C. Stachel, K. Schmidt, 2008, Analytical and bioanalytical chemistry.

Measurement of β-agonist residues in retinal tissue of food producing animals

B. Jülicher, P. Gowik, D. Behrendt, 2000 .

Essential terminology and considerations for validation of non-targeted methods

F. Ulberth, S. Kemmlein, S. Uhlig, 2021, Food chemistry: X.

Validation of a method for the determination of aminoglycosides in different matrices and species based on an in-house concept

D A Bohm, C S Stachel, P Gowik, 2013, Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment.

In-house validation and factorial effect analysis of a liquid chromatography-tandem mass spectrometry method for the determination of steroids in bovine muscle.

P. Gowik, C. Stachel, K. Schmidt, 2009, Analytica chimica acta.

Reference material in residue control: assessment of matrix effects

S. Uhlig, P. Gowik, J. Polzer, 2007 .

Valid machine learning algorithms for multiparameter methods

Kirsten Simon, Manfred Stoyke, Petra Gowik, 2019, Accreditation and Quality Assurance.

Validation of a method for the detection and confirmation of nitroimidazoles and corresponding hydroxy metabolites in turkey and swine muscle by means of gas chromatography-negative ion chemical ionization mass spectrometry.

P. Gowik, J. Polzer, 2001, Journal of chromatography. B, Biomedical sciences and applications.

Efficient estimation of interlaboratory and in-house reproducibility standard deviation in factorial validation studies

S. Uhlig, P. Gowik, 2018, Journal of Consumer Protection and Food Safety.

Nitroimidazoles in turkey muscle—the influence of sampling conditions on measurement results in residue control

P. Gowik, J. Polzer, 2005 .

Confirmatory method for the determination of streptomycin and dihydrostreptomycin in honey by LC–MS/MS

P. Gowik, C. Stachel, D. Bohm, 2012, Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment.

Validation of qualitative PCR methods on the basis of mathematical–statistical modelling of the probability of detection

K. Frost, S. Uhlig, L. Grohmann, 2015, Accreditation and Quality Assurance.

Zilpaterol—a new focus of concern in residue analysis

P. Gowik, W. Radeck, C. Stachel, 2003 .

Preparation and characterisation of in-house reference material of tylosin in honey and results of a proficiency test.

R. Hackenberg, P. Gowik, C. Stachel, 2011, Analytica chimica acta.

Methylbis(2,6-dichIorthiophenoIato)bismut(III) — Synthese, fungizide und bakterizide Aktivität/ Methylbis(2,6-dichlorothiophenolato)bism uth(III) — Synthesis, Fungicidal and Bactericidal Activity

T. Klapötke, P. Gowik, 1987 .

Measurement uncertainty interval in case of a known relationship between precision and mean

S. Uhlig, P. Gowik, B. Colson, 2023, F1000Research.

Eurachem/CITAC Guide - Use of Uncertainty Information in Compliance Assessment, 1st edn.

A. Squirrell, Wolfhard Wegscheider, R. Wood, 2015 .

Validation of a multi-residue method for the determination of several antibiotic groups in honey by LC-MS/MS

P. Gowik, C. Stachel, D. Bohm, 2012, Analytical and Bioanalytical Chemistry.

Efficient estimation of the limit of detection and the relative limit of detection along with their reproducibility in the validation of qualitative microbiological methods by means of generalized linear mixed models

S. Uhlig, P. Gowik, 2018, Journal of Consumer Protection and Food Safety.