LCGC Europe-11-01-2019

Click the title above to open the LCGC Europe November 2019 regular issue, Volume 32, Number 11, in an interactive PDF format.

In this instalment of “GC Connections”, the advantages of multidimensional chromatography with HPLC as the first dimension and GC as the second are discussed.

The occurrence of additives, such as plasticizers in plastic food packaging, has been documented, but information on their potential migration into foods is limited. In this pilot study, 2D GC–MS was used to identify chemicals extracted from a common stretch plastic film with a series of organic solvents.

For decades the prevailing perception was that satisfactory re-equilibration of reversed-phase columns following gradient elution took a long time. In the early 2000s we showed that this perception was not well founded, and demonstrated that adequate re‑equilibration could be achieved in seconds. Recently, we have shown the same for HILIC columns. All of this work so far has been with small molecules. In this article, we present an overview of this work, and summarize the practical utility of it all.

The 16th International Symposium on Hyphenated Techniques in Chromatography and Separation Technology (HTC-16) will be held from 29–31 January 2020 in Ghent, Belgium.

In the second part of this interview on size-exclusion chromatography (SEC) André Striegel discusses the benefits of the technique to analyze nanoparticles and quantum dots, the complementary role of hydrodynamic chromatography (HDC), and the future of SEC in two-dimensional liquid chromatography (2D-LC) separations.

An excerpt from LCGC’s professional development platform, CHROMacademy.com