Publications by authors named "Petr Gibala"

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Comprehensive UHPLC-MS screening methods for the analysis of triazolopyrazine precursor and its genotoxic nitroso-derivative in sitagliptin pharmaceutical formulation.
Jakub Jireš, Michal Douša, Petr Gibala, Jan Doubský, Daniel Pěček

J Pharm Biomed Anal· January 2024

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N-Nitrosation in the absence of nitrosating agents in pharmaceuticals?
Jakub Jireš, Michal Douša, Petr Gibala, Tomáš Kubelka

J Pharm Biomed Anal· September 2022

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The determination of two analogues of 4-(azidomethyl)-1,1'-biphenyl as potential genotoxic impurities in the active pharmaceutical ingredient of several sartans containing a tetrazole group.
Jakub Jireš, Petr Gibala, Stanislav Kalášek, Michal Douša, Jan Doubský

J Pharm Biomed Anal· October 2021

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Insight into the formation of N-nitrosodimethylamine in metformin products.
Jakub Jireš, Stanislav Kalášek, Petr Gibala, Jakub Rudovský, Michal Douša

J Pharm Biomed Anal· February 2021

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Identification and structure elucidation of a new degradation impurity in the multi-component tablets of amlodipine besylate.
Petr Gibala, Michal Douša, Aneta Kalužíková, Marcela Tkadlecová, Martin Štefko

J Pharm Biomed Anal· January 2019

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HPLC/UV/MS method application for the separation of obeticholic acid and its related compounds in development process and quality control.
Michal Douša, Markéta Slavíková, Tomáš Kubelka, Josef Černý, Petr Gibala

J Pharm Biomed Anal· February 2018

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Esterification of Ibuprofen in Soft Gelatin Capsules Formulations-Identification, Synthesis and Liquid Chromatography Separation of the Degradation Products.
Michal Douša, Ludek Meca, Petr Gibala, Josef Jirman, Marcela Tkadlecová

J Chromatogr Sci· September 2017

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Quantification of structurally related aliphatic amino alcohols in l-valinol by hydrophilic interaction liquid chromatography separation combined with postcolumn derivatization and fluorescence detection.
Michal Douša, Jan Stach, Petr Gibala, Karel Lemr

J Sep Sci· March 2016

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HILIC-MS Determination of Genotoxic Impurity of 2-Chloro-N-(2-Chloroethyl)Ethanamine in the Vortioxetine Manufacturing Process.
Michal Douša, Robert Klvaňa, Jan Doubský, Jan Srbek, Jindřich Richter, Petr Gibala

J Chromatogr Sci· February 2016

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New approach of validation using internal normalization technique for quantification of related substances in raw material, intermediates and pharmaceutical substances by HPLC.
Michal Douša, Petr Gibala, Tomáš Pekárek

J Pharm Biomed Anal· October 2015

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Identification, characterization, synthesis and HPLC quantification of new process-related impurities and degradation products in retigabine.
Michal Douša, Jan Srbek, Stanislav Rádl, Josef Cerný, Ondřej Klecán, Petr Gibala

J Pharm Biomed Anal· June 2014

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Retention behavior of a homologous series and positional isomers of aliphatic amino acids in hydrophilic interaction chromatography.
Michal Douša, Jan Srbek, Zdeněk Stránský, Petr Gibala, Lucie Nováková

J Sep Sci· April 2014

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The formation of furfural compounds in selected saccharide- and polysaccharide-based pharmaceutical excipients.
Michal Douša, Petr Gibala, Jiří Břicháč, Jaroslav Havlíček

J Pharm Sci· May 2012

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Rapid determination of ambrisentan enantiomers by enantioselective liquid chromatography using cellulose-based chiral stationary phase in reverse phase mode.
Michal Douša, Petr Gibala

J Sep Sci· April 2012

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Identification, preparation and UHPLC determination of process-related impurity in zolmitriptan.
Michal Douša, Petr Gibala, Stanislav Rádl, Ondřej Klecán, Zuzana Mandelová

J Pharm Biomed Anal· January 2012

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Drug-excipient compatibility testing-Identification and characterization of degradation products of phenylephrine in several pharmaceutical formulations against the common cold.
Michal Douša, Petr Gibala, Jaroslav Havlíček, Lukáš Plaček, Marcela Tkadlecová

J Pharm Biomed Anal· July 2011

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Rapid hydrophilic interaction chromatography determination of lysine in pharmaceutical preparations with fluorescence detection after postcolumn derivatization with o-phtaldialdehyde.
Michal Douša, Jiří Břicháč, Petr Gibala, Petr Lehnert

J Pharm Biomed Anal· April 2011

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Fast HPLC method using ion-pair and hydrophilic interaction liquid chromatography for determination of phenylephrine in pharmaceutical formulations.
Michal Dousa, Petr Gibala

J AOAC Int· December 2010

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Liquid chromatographic separation of pregabalin and its possible impurities with fluorescence detection after postcolumn derivatization with o-phtaldialdehyde.
Michal Dousa, Petr Gibala, K Lemr

J Pharm Biomed Anal· November 2010

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