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High-Throughput Analysis of Volatile Impurities in Sustainable Packaging using SIFT-MS Automated Sample Prep in Regulated and Nonregulated Labs Just Got Easier Trends in Modern LC Separation Workflows Strongly Adsorbing Analytes: What, Why, and How to Fix It What Are Employers Looking For When Hiring Separation Scientists?

High-Throughput Analysis of Volatile Impurities in Sustainable Packaging using SIFT-MSAutomated Sample Prep in Regulated and Nonregulated Labs Just Got EasierTrends in Modern LC Separation WorkflowsStrongly Adsorbing Analytes: What, Why, and How to Fix ItWhat Are Employers Looking For When Hiring Separation Scientists?

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View More Liquid Chromatography (LC/HPLC)Gas Chromatography (GC)Sample Preparation Mass Spectrometry Pharmaceutical Analysis Environmental Analysis Food and Beverage Analysis

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All App NotesBiological, Medical, and ClinicalBiopharmaceuticalsCannabisChiralEnvironmentalFood and BeverageGCGC-MSGeneralIndustrialLCLC-MSMedical/BiologicalMisc TechniquesPharmaceuticalsPolymersSample PrepSize-Exclusion Chromatography (SEC)Supercritical Fluid Chromatography (SFC)

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The Application Notebook

Separation of Quaternary Ammonium Compounds Using a Bonded Polymeric Zwitterionic Stationary Phase

Using a bonded polymeric zwitterionic stationary phase, in HILIC mode, polar quaternary herbicides like Diquat can easily be retained, with good peak symmetry. The impact of ionic strength and organic content in the mobile phase is discussed.