Electromembrane Peptide Extraction
A research group at the University of Oslo (Oslo, Norway) developed a method for electromembrane extraction of eight peptides from an aqueous acidic solution using a thin supported liquid membrane in a porous hollow fiber.
A research group at the University of Oslo (Oslo, Norway) developed a method for electromembrane extraction of eight peptides from an aqueous acidic solution using a thin supported liquid membrane in a porous hollow fiber. The peptides were induced to migrate through the membrane and into an aqueous acidic acceptor solution inside the fiber by a 50-V potential applied across the membrane. Peptide recoveries varied according to peptide structure. Peptide polarity and number of ionized groups also affected extraction efficiency.
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.
