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Unique Research for Developing a Full Factorial Design Evaluated Liquid Chromatography Technique for Estimating Budesonide and Formoterol Fumarate Dihydrate in the Presence of Specified and Degradation Impurities in Dry Powder Inhalation.
Biomed Chromatogr
February 2025
Department of Chemistry, GITAM School of Science, GITAM Deemed to Be University, Hyderabad, India.
A simple LC method has been developed and validated for estimating budesonide (epimer B + A) and formoterol fumarate dihydrate in dry powder inhalation. The development results of this study make it very significant. The degradation and process impurities in EP and ChP were identified in addition to budesonide and formoterol fumarate.
View Article and Find Full Text PDFExploratory multivariate analysis using R Language for method development in liquid chromatography.
Anal Bioanal Chem
January 2025
Department of Medical Biochemistry, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic.
The visual evaluation of data derived from screening and optimization experiments in the development of new analytical methods poses a considerable time investment and introduces the risk of subjectivity. This study presents a novel approach to processing such data, based on factor analysis of mixed data and hierarchical clustering - multivariate techniques implemented in the R programming language. The methodology is demonstrated in the early-stage screening and optimization of the chromatographic separation of 15 structurally diverse drugs that affect the central nervous system, using a custom R Language script.
View Article and Find Full Text PDFA simple HPLC-UV method for monitoring therapeutic adherence in pulmonary arterial hypertension.
J Chromatogr B Analyt Technol Biomed Life Sci
December 2024
Pulmonary Circulation Centre, Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, Krakow, Poland; Department of Cardiac and Vascular Diseases, St. John Paul II Hospital, Krakow, Poland.
A considerable percentage of ineffective treatment in pulmonary arterial hypertension (PAH) may be related to subtherapeutic dosage or non-adherence. The aim of the study was to develop a simple analytical method suitable for plasma determination of selected drugs: riociguat (RIO), bosentan (BOS) and macitentan (MAC) administered to PAH patients. An isocratic HPLC-UV system (Spectra Physics - Shimadzu) with a manual injector (50 μL loop) was applied.
View Article and Find Full Text PDFInvestigating 3-CMC metabolism: Insights from liver microsomes and postmortem biological matrix.
Forensic Sci Int
January 2025
Laboratoire de Pharmacologie - Toxicologie, CHU de Saint-Etienne, Saint-Etienne, France; INSERM, UMR 1059, Dysfonction Vasculaire et de l'Hémostase, Université de Lyon, Saint-Etienne, France. Electronic address:
3-Chloromethcathinone (3-CMC) is a synthetic cathinone that has been identified as a new psychoactive substance (NPS) by the European Monitoring Centre for Drugs and Drug Addiction. Despite its increasing prevalence in the recreational drug market since 2014, scientific literature on 3-CMC remains limited. This study employed a multi-step approach to investigate 3-CMC metabolism.
View Article and Find Full Text PDFDetermination of oxyphenisatine and its total ester derivatives content in fermented green plum by ultra performance liquid chromatography-tandem mass spectrometry.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
January 2025
Jiangyin Food Safety Testing Center, Jiangyin, P. R. China.
Illegal additives such as oxyphenisatine and its esters are prevalent in the slimming food industry, necessitating a robust analytical method for their detection. This study presents a novel UPLC-MS/MS method for the rapid and accurate quantification of total oxyphenisatine levels in fermented green plum, following hydrolysis of its esters. An efficient ultrasonic extraction with a methanol and 0.
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