SBSE Used in Triclosan Analysis
Scientists from Hoshi University (Tokyo, Japan) and the National Research Institute of Police Science (Chiba, Japan) employed stir-bar sorptive extraction (SBSE) and thermal desorption gas chromatography?mass spectrometry (GC?MS) for analyzing 5-chloro-2-(2,4-dichlorophenoxy)phenol, otherwise known as triclosan, in river water samples.
Scientists from Hoshi University (Tokyo, Japan) and the National Research Institute of Police Science (Chiba, Japan) employed stir-bar sorptive extraction (SBSE) and thermal desorption gas chromatography–mass spectrometry (GC–MS) for analyzing 5-chloro-2-(2,4-dichlorophenoxy)phenol, otherwise known as triclosan, in river water samples. In the SBSE method, a magnetic stir bar coated with polydimethylsiloxane was added to a 10-mL water sample, and the sample was stirred for 120 min at room temperature. The coated stir bar was then subjected to thermal desorption and GC–MS.
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.
