LCGC North America-09-01-2019

Click the title above to open the LCGC North America September 2019 issue, Volume 37, Number 9, in an interactive PDF format.

Carefully diluting a sample with weak solvent can mitigate the impact of sample solvent on peak shape in both reversed-phase and HILIC separations, but we need to understand how the choice of sample diluent can affect analyte recovery.

Although manufacturers ship gas chromatographs with a collection of consumable parts and accessories, a number of other essential items should be on hand in every GC laboratory. What items are needed and how can they be used most effectively?

Glycosylation is the most common monoclonal antibody (mAb) posttranslational modification. What is essential to know about it?

Are EU GMP Chapter 4 and USP Chapter on Good Documentation Guidelines similar or complementary? Should we consider any other sources of advice?

In on-site environmental applications, representative sampling and proper replication are essential. For these reasons, recent work in thin-film solidphase microextraction has focused on the development of unique holders and customized samplers that are tailored for distinct sampling environments. Here, we explore the latest developments.