March 21st 2025
This 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.
Predicting Retention Indices in LC–HRMS to Improve Water Quality Analysis
February 21st 2025Ardiana Kajtazi discusses her research identifying organic micropollutants in water using liquid chromatography–high-resolution mass spectrometry (LC–HRMS). She highlights the standardized filtration approach her team has developed based on intersection principles, utilizing retention indices from two reversed-phase liquid chromatography (RPLC) columns.
SPE-Based Method for Detecting Harmful Textile Residues
January 14th 2025University of Valencia scientists recently developed a method using solid-phase extraction (SPE) followed by high-performance liquid chromatography coupled to high-resolution mass spectrometry (HPLC–HRMS/MS) for detecting microplastics and other harmful substances in textiles.