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Akademický článek

Charged Tags for the Identification of Oxidative Drug Metabolites Based on Electrochemistry and Mass Spectrometry

Autor: Alexandra Gutmann, Lars Julian Wesenberg, Nadine Peez, Prof. Dr. Siegfried R. Waldvogel, Prof. Dr. Thorsten Hoffmann

Publikováno v: ChemistryOpen, Vol 9, Iss 5, Pp 568-572 (2020)

Abstract Most of the active pharmaceutical ingredients like Metoprolol are oxidatively metabolized by liver enzymes, such as Cytochrome P450 monooxygenases into oxygenates and therefore hydrophilic products. It is of utmost importance to identify the

Externí odkaz: https://doaj.org/article/8be1408fcd964a1980cd7abc863a3d43

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Feasibility of using quantitative 1H-NMR spectroscopy and ultra-microbalances for investigation of a PET microplastic reference material

Autor: John Seghers, Marcel Günther, Andreas Breidbach, Nadine Peez, Wolfgang Imhof, Håkan Emteborg

Publikováno v: Analytical and Bioanalytical Chemistry.

Here, we report on the feasibility of using quantitative NMR and ultra-microbalances for additional measurements of the mass of poly-ethylene terephthalate (PET) particles in a reference material (RM). The microplastic (MP) PET particles were immobil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::334380543b030f97467eab13f64bd01d
https://doi.org/10.1007/s00216-023-04567-0

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Quantitative 1H-NMR spectroscopy as an efficient method for identification and quantification of PVC, ABS and PA microparticles

Autor: Nadine Peez, Wolfgang Imhof

Publikováno v: The Analyst. 145:5363-5371

As an extension of the new, size-independent, fast and easy quantitative 1H-NMR (qNMR) spectroscopy as an alternative method for microplastic (MP) analysis we herein present the possibility to analyze three environmentally highly relevant MP particle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80cb18680e778e4707f07a77abf774f6
https://doi.org/10.1039/d0an00879f

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Applicable and cost-efficient microplastic analysis by quantitative

Autor: Nadine, Peez, Torsten, Rinesch, Jürgen, Kolz, Wolfgang, Imhof

Publikováno v: Magnetic resonance in chemistry : MRCREFERENCES. 60(1)

In continuation of our work on the proof-of-concept that quantitative NMR spectroscopy may be a valuable tool in microplastic (MP) analysis and quantification, we present here investigations using low-field NMR spectrometers and nondeuterated solvent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a64025957a1e103448ecef9e3a56e774
https://pubmed.ncbi.nlm.nih.gov/34415076

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Author response for 'Applicable and cost‐efficient microplastic analysis by quantitative 1 H‐NMR spectroscopy using benchtop NMR and NoD methods'

Autor: Wolfgang Imhof, Torsten Rinesch, Nadine Peez, Jürgen Kolz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71d0a9e9287b63af52e35fe25e74b44d
https://doi.org/10.1002/mrc.5210/v2/response1

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Quantitative analysis of PET microplastics in environmental model samples using quantitative 1H-NMR spectroscopy: validation of an optimized and consistent sample clean-up method

Autor: Nadine Peez, Jochen Becker, Sonja M. Ehlers, Melanie Fritz, Christian B. Fischer, Jochen H. E. Koop, Carola Winkelmann, Wolfgang Imhof

Publikováno v: Analytical and Bioanalytical Chemistry. 411:7409-7418

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7339fce214f8a266144456f5f3e2e07
https://doi.org/10.1007/s00216-019-02089-2

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The first application of quantitative 1H NMR spectroscopy as a simple and fast method of identification and quantification of microplastic particles (PE, PET, and PS)

Autor: Marie-Christine Janiska, Wolfgang Imhof, Nadine Peez

Publikováno v: Analytical and Bioanalytical Chemistry. 411:823-833

Microplastic (0.001–5 mm) is a serious problem for the environment and is globally distributed. It has been detected in marine and limnic waters as well as in organisms. Until now, microplastic (MP) particles in environmental samples are mainly ide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19bbb3d177a12a8636aa1a4b11b257b1
https://doi.org/10.1007/s00216-018-1510-z

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Quantitative

Autor: Nadine, Peez, Wolfgang, Imhof

Publikováno v: The Analyst. 145(15)

As an extension of the new, size-independent, fast and easy quantitative

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b1a53da22f7c8e86ad111a3cca3af418
https://pubmed.ncbi.nlm.nih.gov/32573575

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Correction to: Quantitative analysis of PET microplastics in environmental model samples using quantitative

Autor: Nadine, Peez, Jochen, Becker, Sonja M, Ehlers, Melanie, Fritz, Christian B, Fischer, Jochen H E, Koop, Carola, Winkelmann, Wolfgang, Imhof

Publikováno v: Analytical and bioanalytical chemistry. 411(28)

The original version of this article contained a mistake.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::3898ce4d45697098a341c3c4ff9fb6b2
https://pubmed.ncbi.nlm.nih.gov/31489440

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The first application of quantitative

Autor: Nadine, Peez, Marie-Christine, Janiska, Wolfgang, Imhof

Publikováno v: Analytical and bioanalytical chemistry. 411(4)

Microplastic (0.001-5 mm) is a serious problem for the environment and is globally distributed. It has been detected in marine and limnic waters as well as in organisms. Until now, microplastic (MP) particles in environmental samples are mainly ident

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::956a3fee7701d179ac5b745bcdc750ad
https://pubmed.ncbi.nlm.nih.gov/30552493

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