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In our February issue:
COLUMNS
Column Watch
Understanding the Science Behind Packing High-Efficiency Columns
and Capillaries: Facts, Fundamentals, Challenges, and Future Directions
Fabrice Gritti and M. Farooq Wahab
Despite the theoretical promise of reduced plate heights (h) < 1, most modern
UHPLC columns can only deliver plate heights in the range from 1.4 to 2.5.
However, improved packing procedures, a better understanding of the colloidal
properties of particle suspensions, and the study of the rheological behavior
of packed beds and the final bed structure should lead us to practical solutions
that can double the column efficiencies.
Read more >>
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Advancing Food Testing Using New and Unique GC Column Selectivities
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LC Troubleshooting
Peak Purity in Liquid Chromatography, Part I: Basic Concepts, Commercial Software, and Limitations
Sarah C. Rutan, C.J. Venkatramani, and Dwight R. Stoll
Is that peak "pure"? How do I know if there might be something hiding under there? In part I of this series, we explore some of the concepts behind peak purity assessments, describe some tools that are used in commercially available software for these assessments, and highlight some of the limitations of these tools using real-world examples.
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A New Technology, Energized Dispersive Extraction, for Rapid, Simple, and Efficient Sample Preparation
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The Essentials
How to Avoid Problems in LC–MS
Five tips to help you get the most out of your LC–MS instruments and methods
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Address the Paradigm Shift in Regulatory Inspections
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FEATURES
The 2018 LCGC Awards
Megan L’Heureux
We explore the careers and achievements of the winners of LCGC’s 11th annual awards: Ronald E. Majors and Zachary S. Breitbach.
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Pittcon 2018: The LCGC Awards Symposium Preview
In advance of Pittcon 2018, leading scientists—Ronald Majors, Richard Henry, John W. Dolan, Zachary S. Breitbach, and Daniel W. Armstrong—who will be speaking at the LCGC awards symposium give us a preview of their talks.
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PEER-REVIEWED ARTICLE
Accuracy Validation of Size-Exclusion Chromatography
Howard G. Barth
Here, a procedure is described for preparing polydisperse polymer standards to validate the accuracy of any SEC method for aqueous or organic mobile phases. This approach can be used for all calibration procedures with the exception of online light scattering and viscometric detection.
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If you would like to submit an article to LCGC, contact Laura Bush, Editorial Director - laura.bush@ubm.com
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