PBDE Analysis with SPE and LLE
Researchers from Central China Normal University (Wuhan, China), Wenzhou Medical College (Wenzhou, China), and East China University of Science and Technology (Shanghai, China) extracted polybrominated diphenyl ethers (PBDEs) from water and plant samples using solid-phase extraction (SPE) and dispersive liquid?liquid microextraction (DLLME).
Researchers from Central China Normal University (Wuhan, China), Wenzhou Medical College (Wenzhou, China), and East China University of Science and Technology (Shanghai, China) extracted polybrominated diphenyl ethers (PBDEs) from water and plant samples using solid-phase extraction (SPE) and dispersive liquid–liquid microextraction (DLLME). They used gas chromatography with electron-capture detection for the final analysis. They obtained relative recoveries of PBDEs spiked into well water, river water, seawater, leachate, and clover samples ranging from approximately 62% to 110%.
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.
