LCGC North America November 2013

November 2013 | Volume 31, Issue 11
Sample Prep Perspectives
Some sample preparation techniques that were introduced in the past are now being used for new applications.
LC Troubleshooting
How to evaluate a calibration curve and calculate the lower limit of calibration.
GC Connections
A discussion of the effects of increased carrier-gas flow in an example separation that includes two pairs of solutes.
MS – The Practical Art
Correlating biological activity with chemical composition is the Holy Grail of natural product chemists. Is mass spectrometry the right tool for this challenge?
Biotechnology Today
The use of a monolithic column reduces analysis time in an on-line biopharmaceutical HPLC analysis of granulocyte colony stimulating factor.
The Essentials
By LCGC Editors
There are many ways to improve retention and selectivity in reversed-phase HPLC separations. Choosing the correct mobile phase is maybe the most important step.
Peer Reviewed Article
A new chromatography-based method for analyzing a traditional Chinese medicine and its metabolites.
Peaks of Interest
By LCGC Editors
The Coblentz Society, an affiliate of the Society of Applied Spectroscopy, was approached with a challenge from an anonymous donor during the SciX13 conference.
Market Profile
By LCGC Editors
With accountability and regulatory compliance being such a large part of the modern laboratory, the necessity for a laboratory information management system (LIMS) cannot be understated.
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