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.
Determining Poultry Slaughterhouse Waste-Related Risks with HPLC
As the poultry sector in Côte d`Ivoire (The Ivory Coast) expands and huge quantities of waste are generated, researchers analyzed the risks associated with the discharge of poultry slaughterhouse waste in public landfill sites in Abidjan, the county’s largest city. Chemical and microbiological analysis of 30 poultry slaughter waste samples from 10 Abidjan communities was performed using high performance liquid chromatography (HPLC) and detection of pathogenic bacteria on specific media, respectively.
The nonsteroidal anti-inflammatory drug (NSAID) flunixin meglumine has been approved by the FDA for fever associated with bovine respiratory disease or mastitis and for control of pain from foot rot in cattle. A study determining the pharmacokinetics of a single dose of flunixin transdermal formulation in American bullfrogs used ultrahigh-pressure liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) to determine plasma flunixin concentrations.