1,180 research outputs found

    LC-MS monitoring of selected antimicrobial compounds in waters

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    5 Abstract Charles University Phaculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Candidate: Dominik Krupka Supervisor: doc. PharmDr. Radim Kučera, Ph.D. Consultant: Ing. Martin Ferenčík Title of diploma thesis: LC-MS monitoring of selected antimicrobial compounds in waters The monitoring of residues of human and veterinary antibiotics in surface water is gaining more and more importance due to the increasing resistance of bacteria. This work deals with the modificate of an HPLC-MS/MS method to obtain pilot data on the occurrence of antibiotics in surfaces water. The method is focused on the analysis of 30 antibiotics from the groups of β-lactams, macrolides, lincosamides, amphenicols, fluoroquinolones, tetracyclines and sulfonamides. The method was performed on a UHPLC instrument Agilent 1200 Infinity series with MS Agilent model 6495 triple Quad. Separation of antibiotics was performed on reverse phase using gradient elution and tandem mass spectrometry. An electrospray in both positive and negative polarity was used to ionize the analytes. The method was used for the pilot analysis of surface water samples in the Czech Republic. Samples from 15 rivers and streams were analysed. The most frequently found antibiotics were sulfomethoxazole and...4 Abstrakt Univerzita Karlova Farmaceutická fakulta v Hradci Králové Katedra farmaceutické chemie a farmaceutické analýzy Kandidát: Dominik Krupka Vedoucí diplomové práce: doc. PharmDr. Radim Kučera, Ph.D. Konzultant diplomové práce: Ing. Martin Ferenčík Název diplomové práce: LC-MS monitorování vybraných antimikrobních látek ve vodách Sledování reziduí humánních a veterinárních antibiotik v povrchových vodách získává, vzhledem ke vzrůstající rezistenci bakterií, stále na větší důležitosti. Tato práce se zabývá adaptováním HPLC-MS/MS metody pro získání pilotních dat o výskytu antibiotik v povrchových vodách. Metoda je zaměřena na analýzu 30 antibiotik ze skupin β-laktamů, makrolidů, linkosamidů, amfenikolů, fluorochinolonů, tetracyklinů a sulfonamidů. Analýza byla vykonána na přístroji UHPLC Agilent 1200 Infinity series s MS Agilent model 6495 triple Quad. Separace antibiotik byla provedena na reverzní fázi s využitím gradientové eluce a pro jejich detekci byla využita tandemová hmotnostní spektrometrie. Pro ionizaci analytů byl použit elektrosprej v kladné i záporné polaritě. Metoda byla použita pro pilotní analýzu vzorků povrchových vod České republiky. Byly analyzovány vzorky z 15 toků. Nejčastěji nalézanými antibiotiky byly sulfomethoxazol a klarithromycin. Klíčová slova: HPLC, MS, Antibiotika,...Department of Pharmaceutical Chemistry and Pharmaceutical AnalysisKatedra farmaceutické chemie a farmaceutické analýzyFaculty of Pharmacy in Hradec KrálovéFarmaceutická fakulta v Hradci Králov

    LC-MS monitoring of selected antimicrobial compounds in waters

    Get PDF
    5 Abstract Charles University Phaculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Candidate: Dominik Krupka Supervisor: doc. PharmDr. Radim Kučera, Ph.D. Consultant: Ing. Martin Ferenčík Title of diploma thesis: LC-MS monitoring of selected antimicrobial compounds in waters The monitoring of residues of human and veterinary antibiotics in surface water is gaining more and more importance due to the increasing resistance of bacteria. This work deals with the modificate of an HPLC-MS/MS method to obtain pilot data on the occurrence of antibiotics in surfaces water. The method is focused on the analysis of 30 antibiotics from the groups of β-lactams, macrolides, lincosamides, amphenicols, fluoroquinolones, tetracyclines and sulfonamides. The method was performed on a UHPLC instrument Agilent 1200 Infinity series with MS Agilent model 6495 triple Quad. Separation of antibiotics was performed on reverse phase using gradient elution and tandem mass spectrometry. An electrospray in both positive and negative polarity was used to ionize the analytes. The method was used for the pilot analysis of surface water samples in the Czech Republic. Samples from 15 rivers and streams were analysed. The most frequently found antibiotics were sulfomethoxazole and...4 Abstrakt Univerzita Karlova Farmaceutická fakulta v Hradci Králové Katedra farmaceutické chemie a farmaceutické analýzy Kandidát: Dominik Krupka Vedoucí diplomové práce: doc. PharmDr. Radim Kučera, Ph.D. Konzultant diplomové práce: Ing. Martin Ferenčík Název diplomové práce: LC-MS monitorování vybraných antimikrobních látek ve vodách Sledování reziduí humánních a veterinárních antibiotik v povrchových vodách získává, vzhledem ke vzrůstající rezistenci bakterií, stále na větší důležitosti. Tato práce se zabývá adaptováním HPLC-MS/MS metody pro získání pilotních dat o výskytu antibiotik v povrchových vodách. Metoda je zaměřena na analýzu 30 antibiotik ze skupin β-laktamů, makrolidů, linkosamidů, amfenikolů, fluorochinolonů, tetracyklinů a sulfonamidů. Analýza byla vykonána na přístroji UHPLC Agilent 1200 Infinity series s MS Agilent model 6495 triple Quad. Separace antibiotik byla provedena na reverzní fázi s využitím gradientové eluce a pro jejich detekci byla využita tandemová hmotnostní spektrometrie. Pro ionizaci analytů byl použit elektrosprej v kladné i záporné polaritě. Metoda byla použita pro pilotní analýzu vzorků povrchových vod České republiky. Byly analyzovány vzorky z 15 toků. Nejčastěji nalézanými antibiotiky byly sulfomethoxazol a klarithromycin. Klíčová slova: HPLC, MS, Antibiotika,...Katedra farmaceutické chemie a farmaceutické analýzyDepartment of Pharmaceutical Chemistry and Pharmaceutical AnalysisFaculty of Pharmacy in Hradec KrálovéFarmaceutická fakulta v Hradci Králov

    LC-MS monitoring of selected antimicrobial compounds in waters

    No full text
    5 Abstract Charles University Phaculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Candidate: Dominik Krupka Supervisor: doc. PharmDr. Radim Kučera, Ph.D. Consultant: Ing. Martin Ferenčík Title of diploma thesis: LC-MS monitoring of selected antimicrobial compounds in waters The monitoring of residues of human and veterinary antibiotics in surface water is gaining more and more importance due to the increasing resistance of bacteria. This work deals with the modificate of an HPLC-MS/MS method to obtain pilot data on the occurrence of antibiotics in surfaces water. The method is focused on the analysis of 30 antibiotics from the groups of β-lactams, macrolides, lincosamides, amphenicols, fluoroquinolones, tetracyclines and sulfonamides. The method was performed on a UHPLC instrument Agilent 1200 Infinity series with MS Agilent model 6495 triple Quad. Separation of antibiotics was performed on reverse phase using gradient elution and tandem mass spectrometry. An electrospray in both positive and negative polarity was used to ionize the analytes. The method was used for the pilot analysis of surface water samples in the Czech Republic. Samples from 15 rivers and streams were analysed. The most frequently found antibiotics were sulfomethoxazole and..

    LC-MS monitoring of selected antimicrobial compounds in waters

    No full text
    5 Abstract Charles University Phaculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Pharmaceutical Analysis Candidate: Dominik Krupka Supervisor: doc. PharmDr. Radim Kučera, Ph.D. Consultant: Ing. Martin Ferenčík Title of diploma thesis: LC-MS monitoring of selected antimicrobial compounds in waters The monitoring of residues of human and veterinary antibiotics in surface water is gaining more and more importance due to the increasing resistance of bacteria. This work deals with the modificate of an HPLC-MS/MS method to obtain pilot data on the occurrence of antibiotics in surfaces water. The method is focused on the analysis of 30 antibiotics from the groups of β-lactams, macrolides, lincosamides, amphenicols, fluoroquinolones, tetracyclines and sulfonamides. The method was performed on a UHPLC instrument Agilent 1200 Infinity series with MS Agilent model 6495 triple Quad. Separation of antibiotics was performed on reverse phase using gradient elution and tandem mass spectrometry. An electrospray in both positive and negative polarity was used to ionize the analytes. The method was used for the pilot analysis of surface water samples in the Czech Republic. Samples from 15 rivers and streams were analysed. The most frequently found antibiotics were sulfomethoxazole and..

    Planning in Brazil, India and Germany

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    Planning is a fundamental cognitive ability that helps in organizing and structuring events unfolding in a person\u27s daily life. Two studies are presented that analyze planning behavior in different cultures: Brazil, India, and Germany. The first is a cross-cultural psychological study in which students develop plans for uncertain problem scenarios. The second study follows a cultural psychological tradition. Workers from different domains are interviewed about their life problems and plans. The strengths and the weaknesses of both approaches become obvious in the description and discussion of these two studies. The cross-cultural study sheds light on cross-cultural similarities and differences in planning in Brazil, India, and Germany. The cultural psychological approach yields data regarding a theoretical model on the specific cultural influences on planning

    Decision Making in Individualistic and Collectivistic Cultures

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    How do cultural values influence individuals\u27 decision making? One would expect answers to this question either from cognitive psychology or from cross-cultural psychology. Cognitive theories on decision making, however, rarely consider the factor of culture, and research in cross-cultural psychology deals only to a small extent with decision making. Therefore the study of culture and decision making is a relatively new and unexplored field. In this paper normative and descriptive approaches to decision making are discussed and three cross-cultural studies on decision making in individualistic and collectivist cultures using different methodologies are described. The results are integrated into a model that can be helpful to derive specific hypotheses for further studies in this field

    Dominik Tatarka - wędrowiec

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    Dominik Tatarka is one of the Slovak travel books’s author; he wrotes reports Clovek na cestach. The travelling was important factor of his life: he find an inspiration for his writting and he formulated his life’s philosophy during his journeys. The travelling is one of the important key for reading all his compositions and for understanding his otlook on life: the author presents himself no as the postmodern nomad, but as the pilgrim, who wanders for aim „to unit splits world” and to find a man

    Comprehensive analysis of polypropylene recyclates : characterization, representative sampling and quantification approaches of polyolefin cross contaminations of polypropylene recyclates

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    Author DI Dominik Kaineder BSc.Dissertation Johannes Kepler Universität Linz 2025Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba

    Comprehensive analysis of polypropylene recyclates : characterization, representative sampling and quantification approaches of polyolefin cross contaminations of polypropylene recyclates

    No full text
    Author DI Dominik Kaineder BSc.Dissertation Johannes Kepler Universität Linz 2025Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba

    Beato Iohannes Traguriensis and Dominik Andreis

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    In the 17th century, the hagiography and iconography of Bishop Iohannes Traguriensis were enriched by various members of Trogir’ s noble families. In this promotion of the cult of the local beato, Dominik Andreis stands out with his efforts: he was the author of an unpublished Litany in Croatian (1632), the instigator of publishing an Italian Vita by Giovanni Francesco Loredan (1648), and the sponsor of a three act drama by Girolamo Brusoni (1656), performed in Trogir with musical intermezzos and published two years later (1658)
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