LCGC North America-04-01-2019

Click the title above to open the LCGC North America April 2019 issue, Volume 37, Number 4, in an interactive PDF format.

Re-equilibrating a reversed-phase stationary phase following aqueous gradient elution can be achieved much faster than you think.

New HPLC and MS systems: A review of instrumentation trends and the current market along with new instruments, modules, chromatography data systems, and related software.

We provide a succinct explanation of electron ionization for GC–MS and illustrate the fundamentals of ion formation.

In this interview, Thomas Letzel of the Technical University of Munich considers the current state of water analysis, looking at recommended techniques, the growth of nontargeted screening, and multi-disciplinary collaboration.

The meaning of the terms raw data and complete data are explored. One term is from EU GMPs and the other is from US GMPs. Do they mean the same thing?

How well do Gaussian-shaped profiles represent injected solute peaks after they are eluted through a chromatographic column? This question is explored along with a discussion of moment analysis for determining retention time, variance, and shapes of peaks.