Liquid Chromatography

Comparing silica and agarose resins for analysis of proteins with SEC

Silica- and agarose-based resins are the two most used types of size exclusion chromatography (SEC) resins available for protein analysis purposes. But how do they compare and which should you use?

TUTORIAL SERIES: Ion Chromatography Fundamentals

Need to know more about ion chromatography, new to the technique and not sure where to start, or just need a refresher? If the answer to any of the above is yes, then this 'Basics of Ion Chromatography' learning hub is just what you need.

TAN/TBN titration in petrochemical samples - walk away automation for up to 112 samples

The OMNIS Sample Robot from Metrohm meets the need of petrochemical laboratories for automated TAN/TBN determinations in large numbers of samples.

Reliable walk-away automation for serial volumetric Karl Fischer titration

Completely unattended volumetric water determination in up to 50 samples is now possible with the OMNIS Sample Robot from Metrohm.

New OMNIS Karl Fischer titrator makes volumetric water determination safer and easier

The new OMNIS Karl Fischer titrator stands for a safer and more convenient way of volumetric water content determination.

Shodex size-exclusion chromatography tutorial

This video provides a general overview of size-exclusion chromatography.Size-exclusion chromatography is used for analysing high molar mass compounds, such as synthetic polymers, bio-polymers, like proteins and antibodies, polysaccharides and...

Achieve high-throughput analysis of cannabinoids by LC-UV

The LC-UV method shown in this application note from Restek uses a Raptor ARC-18 column to fully resolve 16 major and most frequently observed minor cannabinoids for which commercial standards are available.

Shodex ion chromatography tutorial

This video provides a general overview of ion chromatography.

The IC separation is based on electrostatic interaction (bonding) between the ion exchanger and ionic solutes. Different columns for anionic and cationic separation are available. The...

Innovative septa for your SPME Arrow applications

Analysts have long enjoyed the benefits of Merlin Microseal septa for their traditional and SPME fiber injections—and now, you can switch to these innovative septa for your SPME Arrow applications, too!

Accurate and reproducible water content determination by Karl Fischer titration

Water content determination is a standard application in many samples and Karl Fischer titration is the most widely used and accurate method. Metrohm offers solutions enabling the water content determination in almost any matrix ranging from...

Shodex ligand exchange chromatography tutorial

This video describes the separation mode of ligand exchange (LEX). The main application is the complex analysis of sugars. The LEX columns always have a double separation mode. This means two different separation modes in one column. Ligand...

Shodex HILIC tutorial

This video provides a general overview of hydrophilic interaction chromatography, also known as HILIC.HILIC separation is based on hydrophilic interaction. HILIC uses the same solvent as with reserved-phase chromatography (acetonitrile / water /...

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