Researchers from Dow Chemical Company (Midland, Michigan) used headspace sampling with gas chromatography to analyze the concentration and identity of compounds in the vapor above six ionic liquids at a temperature of 100 ?C.
Researchers from Dow Chemical Company (Midland, Michigan) used headspace sampling with gas chromatography to analyze the concentration and identity of compounds in the vapor above six ionic liquids at a temperature of 100 C. The researchers also determined detection limits and measured the partition coefficients of 10 compounds. The results showed that the technique is useful in quantitating compounds in vapors above ionic liquids.
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.