LCGC North America March 2014

March 2014 | Volume 32, Issue 3
Column Watch
Stacking and sweeping injection methods are compared and practical suggestions are provided about how to enhance sensitivity for charged and neutral compounds.
LC Troubleshooting
If scaling isocratic separations is so simple, why is gradient scaling so confusing?
GC Connections
A discussion on the safe storage and use of calibration, carrier, and detector gas cylinders for small or large organizations.
The Essentials
The mechanisms of mixed-mode chromatography are explained, with reference to the parameters that are used to optimize selectivity and retention.
Peer-Reviewed Articles
This pyrolysis–GC–MS method enables direct analysis of solid or liquid polymers without sample pretreatment, as illustrated here for various materials, including a dental filling material and a car wrapping foil.
An efficient method for forensic analysis of amphetamines and synthetic cathinones — the illicit drugs often called "bathsalts" — in hair samples
By LCGC Editors
Daniel W. Armstrong, a professor of chemistry and biochemistry at the University of Texas Arlington in Arlington, Texas, is to receive the 2014 American Chemical Society Award in Separations Science and Technology.
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