Tag Archives: sec-mals


Published 7 Oct 2021

GPC/SEC standards: making them last

Earlier this year I highlighted the different types of GPC/SEC standards available and where to find them on our eStore. In this post, I’m going to share some tips and tricks about preparing your standards and making them last. But…READ MORE >

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Published 9 Sep 2021

SEC-MALS 20: upgrade your system!

I spill a lot of digital ink extolling the virtues of our OMNISEC system, and for good reason!  The power of a complete, advanced detection SEC system is undeniable.  But in this post, I’m going to focus on a single,…READ MORE >

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Published 7 Jul 2021

OMNISEC consumables on the eStore!

A GPC/SEC system contains a lot of parts!  In addition to columns and standards, there are a number of consumable items required to actually use the instrument.  Since I didn’t get to them in my last post, this one will…READ MORE >

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Published 10 Jun 2021

The importance of the post-column filter

I began this post with the intention of discussing the most popular GPC/SEC consumables available from the Malvern Panalytical eStore.  As with my previous posts on columns and standards, my goal was to provide a list of consumables to keep…READ MORE >

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Published 6 May 2021

Aggregates! And what they look like in GPC/SEC data

One of the pleasures of working in the Applications Lab is that I get to analyze a variety of GPC/SEC sample types.  I can be finishing up a set of biodegradable polyesters, currently running low molecular weight oligomers, while getting…READ MORE >

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Published 20 Apr 2021

What can compositional analysis do for me?

A few days ago, my colleague Dr. John Stenson previewed the upcoming launch of the OMNISEC software’s newest feature: compositional analysis!  Amidst your excitement at the great content headed your way, you might be wondering, “what can compositional analysis do…READ MORE >

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Published 10 Mar 2021

GPC/SEC standards from the eStore!

In my last post, I highlighted the most common GPC/SEC columns available from the Malvern Panalytical eStore.  Just like with columns, scientists rely on the selection of appropriate GPC/SEC standards to generate reliable methods and obtain quality results.  In order…READ MORE >

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Published 25 Sep 2019

Rh or Rg: Which is best for my GPC/SEC samples?

The primary goal when employing gel permeation / size exclusion chromatography (GPC/SEC) is often to determine the molecular weight of a macromolecular sample.  Multi-detector systems, such as Malvern Panalytical’s OMNISEC and TDAmax systems, are able to offer a range of…READ MORE >

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Published 13 Aug 2019

Can my GPC/SEC chromatogram be trusted?

You’ve done the hard parts to get your GPC/SEC instrument ready: prepared the mobile phase, stabilized the detector baselines, and prepared your sample.  After injection and completion of your sample sequence, you have acquired data.  Congrats!  Now, before you even…READ MORE >

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