Separation Science

New HPLC columns from Shodex to improve your separation performance

Shodex's new range of columns are available for a wide range of separation techniques. The separation techniques start with reversed phase, normal phase, HILIC, ion chromatography, ion exchange, ion exclusion, size exclusion chromatography, multi...

GPC/SEC Analysis of Polymer Branching

Malvern has produced an application note describing the GPC (or equivalently SEC) analysis of branching in polyvinylpyrrolidone (PVP).

Characterizing Different Polymer Degradation Routes during Processing using Multi-detector GPC and Capillary Rheology

Malvern has produced an application note describing molecular and rheological changes that occurred as samples of PS and PMMA were extruded through a capillary rheometer, simulating moulding.

Understanding GPC/SEC - Finding the Right Particle Size and Pore Size

Want to understand what the correct criteria for column selection should be based on? If so, this tutorial is for you...

Understanding GPC/SEC - Unexpected Peak Shapes

Do you find weird peak shapes in your chromatograms? Not sure if they are real or artifacts?

Understanding GPC/SEC - How to deal with pressure problems

So you're using gel permeation chromatography (GPC) / size exclusion chromatography (SEC) but are experiencing problems with your system pressure. What do you do?

How to Achieve High Temperature GPC Analysis of Polyphenylene Sulfide

Tosoh Bioscience has produced an application note describing how polyphenylene sulfide (PPS) analysis can be successfully achieved using its EcoSEC high temperature GPC system.

Effective Analysis of Asphalt Binders

Tosoh Bioscience has produced an application note describing the analysis of asphalt binders using gel permeation chromatography.

Analysis of Bio-Inspired Alkylalanoid Polymers

Tosoh Bioscience has produced an application describing how to improve reproducibility of MW measurements of polypeptoids using an EcoSEC GPC system.

Monitoring Single-Chain Nanoparticle Formation

Tosoh Bioscience has produced an application note describing how to monitor single-chain nanoparticle formation and characterize nanoparticles using multi-pore TSKgel GPC columns.

High Temperature GPC Analysis of a Polypropylene Copolymer

Tosoh Bioscience has produced an application note determining the molar mass averages and polydispersity of two polypropylene random copolymer samples via refractive index (RI) detection using the EcoSEC High Temperature GPC System and TSKgel...

Trends and Applications in GPC Polymer Analysis

Gel permeation chromatography (GPC) is a valuable and well established tool for the chemical industry when it comes to the determination of the molecular weight and the molecular weight distribution of polymers.

Analysis of Polymers for Therapeutics

Tosoh Bioscience has produced an application note demonstrating how GPC was applied to analyse and differentiate the molar mass averages and distributions of four block copolymers intended to be used in a polymer-based therapeutic.

Understanding GPC/SEC - What do you need to know before injecting a sample?

So you're thinking of using gel permeation chromatography (GPC) for your analyses, but before you dive in just what information do you need to know before your first sample injection?

SEC-MALS Detector for Essential Protein and Polymer Characterization

Wyatt Technology, a company specializing in instrumentation for absolute macromolecular and nanoparticle characterization, has announced the launch of its next generation multi-angle light scattering (MALS) detector for SEC/GPC, the miniDAWN®...

     

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