Headspace Sorptive Extraction of Volatile Compounds in Vinegars
Researchers from the Universidad de Sevilla (Spain) used gas chromatography-mass spectrometry with headspace sorptive extraction-thermal desorption to analyze volatile compounds in wine vinegars.
Researchers from the Universidad de Sevilla (Spain) used gas chromatography-mass spectrometry with headspace sorptive extraction-thermal desorption to analyze volatile compounds in wine vinegars. Quantification of the aroma compounds is difficult because of matrix complexity and low analyte concentrations. The researchers successfully validated the method and obtained low detection and quantification limits. The method reportedly allowed the researchers to determine 53 compounds in various wine vinegars, some for the first time.
Study Explores Thin-Film Extraction of Biogenic Amines via HPLC-MS/MS
March 27th 2025Scientists from Tabriz University and the University of Tabriz explored cellulose acetate-UiO-66-COOH as an affordable coating sorbent for thin film extraction of biogenic amines from cheese and alcohol-free beverages using HPLC-MS/MS.
Multi-Step Preparative LC–MS Workflow for Peptide Purification
March 21st 2025This article introduces a multi-step preparative purification workflow for synthetic peptides using liquid chromatography–mass spectrometry (LC–MS). The process involves optimizing separation conditions, scaling-up, fractionating, and confirming purity and recovery, using a single LC–MS system. High purity and recovery rates for synthetic peptides such as parathormone (PTH) are achieved. The method allows efficient purification and accurate confirmation of peptide synthesis and is suitable for handling complex preparative purification tasks.
