Search Results - "Walther, Rasmus"

Method transfer from ion pair chromatography to charged aerosol detector-compatible mixed-mode chromatography: A case study using carbocisteine by Walther, Rasmus, Scherf-Clavel, Oliver, Holzgrabe, Ulrike

“…To take advantage of the charged aerosol detector (CAD) for sensitive LC analysis of analytes with weak chromophore, the volatility of the entire mobile phase…”
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Analytical Quality by Design: Achieving Robustness of an LC-CAD Method for the Analysis of Non-Volatile Fatty Acids by Walther, Rasmus, Krmar, Jovana, Leistner, Adrian, Svrkota, Bojana, Otašević, Biljana, Malenović, Andjelija, Holzgrabe, Ulrike, Protić, Ana

“…An alternative to the time-consuming and error-prone pharmacopoeial gas chromatography method for the analysis of fatty acids (FAs) is urgently needed. The…”
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Simplification of pharmacopoeial liquid chromatography methods for related substances of statins by hyphenated ultraviolet and charged aerosol detection by Walther, Rasmus, Holzgrabe, Ulrike

“…For a more comprehensive characterization of a drug substance and its impurities, multidetector approaches are a helpful tool in liquid chromatography. In…”
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Synthesis and Biological Evaluation of Flavonoid‐Cinnamic Acid Amide Hybrids with Distinct Activity against Neurodegeneration in Vitro and in Vivo by Hofmann, Julian, Spatz, Philipp, Walther, Rasmus, Gutmann, Marcus, Maurice, Tangui, Decker, Michael

“…Flavonoids are polyphenolic natural products and have shown significant potential as disease‐modifying agents against neurodegenerative disorders like…”
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Identification of low-level impurities in drug prototypes of carbocisteine by means of liquid chromatography-high-resolution mass spectrometry and general unknown comparative screening by Walther, Rasmus, Kinzig, Martina, Zamponi, Annette, Sörgel, Fritz, Scherf-Clavel, Oliver, Holzgrabe, Ulrike

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