March 2021 | The Column

The Benefits of Multi‐angle Light Scattering for Size‐Exclusion Chromatography

March 01, 2021

Features

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Analytical size-exclusion chromatography (SEC) often suffers from several limitations. This article shows how some of these limitations can be partly (or even completely) resolved by a multi-angle light scattering (MALS) detector for the determination of molar mass distributions of synthetic and natural polymers.

The LCGC Blog: How long should my GC column last?

March 01, 2021

Regulars

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The question, which is often asked of our technical support and applications chemists, is one to which I often reply, in the words of John F Kennedy, "Ask not what your column can for you, ask what you can do for your column.” OK, JFK substituted “column” for “country” in his version of the quotation, but as you will see, it’s a very relevant premise!