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Chromatographic peak integration continues to be a major regulatory issue and was first discussed in this column in 2015. Is the approach to manual intervention and manual integration outlined still acceptable in the light of regulatory citations and guidance documents published since then?

The potential of food packaging components to migrate into food is an important health concern. Perfecto Paseiro Losada and his group at the University of Santiago de Compostela, in Spain, have been investigating the migration kinetics and actual migration of such compounds into a variety of types of food. They also have been carrying out studies to estimate dietary exposure. Paseiro recently spoke to LCGC about this work.

Fundamentals aspects of using HPLC techniques for protein analysis are described as they relate to the analysis of post-translational modifications (PTMs) and glycoprofiles.

In HPLC Diagnostics Skills Part I we looked at baseline issues, and we continue here with HPLC peaks and in particular the skills required to identify tailing peaks, the causes of peak tailing, and most importantly, how to fix the issues that give rise to this peak deformation.

Agilent Technologies has announced the opening of a new state-of-the-art facility for spectroscopy research and development at the Harwell Science and Innovation Campus in Oxfordshire, UK.

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Researchers have developed two new methods for the analysis of MOAHs in highly purified mineral oil fractions (white oils) using comprehensive AgLC×GC, one method uses FID, while the other uses VUV.

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The sample solvent can have a big impact on peak shape in both reversed-phase and hydrophilic interaction liquid chromatography (HILIC) separations, especially when large volumes are injected. Diluting the sample with weak solvent can be an effective solution to mitigate this problem, but we have to be careful to not lose analytes of interest to precipitation or phase separation.

Most manufacturers ship gas chromatographs with a small collection of consumable parts and accessories, such as extra ferrules, inlet liners, or septa, and a few instrument-specific tools. In earlier times, some convenience items might have been included as well, like a bubble flow meter or a small set of tools, but now it’s rare to find such things in the shipping boxes. This edition of “GC Connections” lists a number of essential items that should be on hand in every gas chromatography (GC) laboratory, their function, and how to use them effectively.