Liquid Chromatography

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.

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

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.

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 /...

Looking to calculating the financial benefit of replacing your current LC instrumentation? This white paper should help...

Preparative-scale chromatography plays a critical role in applications where compounds must be synthesized, identified, isolated, purified, characterized, screened, and tested. Waters AutoPurification Systems offer scalable prep configurations,...

The transfer of chromatographic methods occurs at many stages in the development and production of a product. In its simplest form, the method is moved from one laboratory to another within the same organization, holding all instrumental and...

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

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

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

Shifting retention times within a sample batch can be a real source of headaches in the routine HPLC laboratory. Previously we talked about the kind of retention drift experienced by some HPLC methods for the first few injections. This often is...

How many of you have experienced this? You think you’ve fully equilibrated the HPLC column by running mobile phase through it for 30 min, but for the first 3 or 4 injections, the retention times drift a little, finally settling down after half a...