PAH Extraction from Water Samples
Researchers from IWW Water Centre (Mülheim an der Ruhr, Germany) and University Duisburg-Essen (Duisberg, Germany) developed a solid-phase extraction (SPE) procedure using extraction disks in the analysis of polycyclic aromatic hydrocarbons (PAHs) in surface water samples.
Researchers from IWW Water Centre (Mülheim an der Ruhr, Germany) and University Duisburg-Essen (Duisberg, Germany) developed a solid-phase extraction (SPE) procedure using extraction disks in the analysis of polycyclic aromatic hydrocarbons (PAHs) in surface water samples. The one-step extraction was followed by gas chromatography–mass spectrometry (GC–MS) analysis. They compared their results with those obtained using liquid–liquid extraction (LLE) and found that the SPE disk method provided much higher recoveries and better precision than the LLE method.
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.
