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A Semi-Quantitative Approach to Nontarget Compositional Analysis of Complex Samples.
Anal Chem
November 2024
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York YO10 5DD, United Kingdom.
Nontarget analysis (NTA) by liquid chromatography coupled to high-resolution mass spectrometry improves the capacity to comprehend the molecular composition of complex mixtures compared to targeted analysis techniques. However, the detection of unknown compounds means that quantification in NTA is challenging. This study proposes a new semi-quantitative methodology for use in the NTA of organic aerosol.
View Article and Find Full Text PDFComprehensive identification of polyphenolic metabolites in aspen knotwood by combination of 2D NMR and HPLC-HRMS.
Phytochem Anal
September 2024
Laboratory of Natural Product Chemistry and Bioanalytics, Core Facility Center "Arktika", Northern (Arctic) Federal University, Arkhangelsk, Russia.
Introduction: European aspen (Populus tremula L.) knotwood contains large amounts of polyphenolic metabolites, mainly flavonoids, and can be considered as a promising industrial-scale source of valuable bioactive compounds. Valorization of knotwood extractives requires detailed information on their chemical composition and a relevant analytical methodology.
View Article and Find Full Text PDFEvaluation of a Novel Immunochromatographic Device for Detecting in Patients with Periodontal Disease.
Int J Mol Sci
July 2024
Division of Infections and Molecular Biology, Department of Health Promotion, Kyushu Dental University, Kitakyushu 803-8580, Fukuoka, Japan.
is the most pathogenic periodontal bacterium in the world. Recently, has been considered responsible for dysbiosis during the development of periodontitis. This study aimed to evaluate a novel immunochromatographic device using monoclonal antibodies against in subgingival plaques.
View Article and Find Full Text PDFLung ultrasound among Expert operator'S: ScOring and iNter-rater reliability analysis (LESSON study) a secondary COWS study analysis from ITALUS group.
J Anesth Analg Crit Care
July 2024
Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy.
Article Synopsis
- Lung ultrasonography (LUS) is a useful, non-invasive tool for diagnosing respiratory conditions, particularly in resource-limited settings, as it reduces radiation exposure and quantifies regional loss of aeration.
- A study assessed the agreement among 20 experienced LUS operators by having them evaluate 25 video clips, revealing strong but not perfect inter-rater reliability, with varying levels of consensus on the scores assigned to the clips.
- Despite some discrepancies, the findings indicate that LUS scoring can reliably inform severity assessments in respiratory diseases, making it a valuable clinical tool.
Time-of-Flight Secondary Ion Mass Spectrometry Coupled with Unsupervised Methods for Advanced Saffron Authenticity Screening.
Foods
June 2024
Lebanese Atomic Energy Commission, National Council for Scientific Research, Riad El Solh, Beirut 107 2260, Lebanon.
Saffron, renowned for its aroma and flavor, is susceptible to adulteration due to its high value and demand. Current detection methods, including ISO standards, often fail to identify specific adulterants such as safflower or turmeric up to 20% (/). Therefore, the quest continues for robust screening methods using advanced techniques to tackle this persistent challenge of safeguarding saffron quality and authenticity.
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