LCGC Europe, Nov 1, 2003 - LC-GC Europe
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LCGC Europe, Nov 1, 2003
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Relative Retention Times
Uncertainty Related to the Use of Relative Retention Times in Pharmaceutical Analysis
The authors address the confusing lack of harmonization in how to calculate RRT. A discussion of five separations performed on 59 different columns suggests that this inconsistency can lead to incorrect peak identification.
LC Troubleshooting
How Much is Enough?
John Dolan answers questions about two LC practices: column regeneration after a reversed-phase gradient has been run, and which degassing technique is best.
Sample Preparation Perspectives
Directions in Automated Sample Preparation of Proteins
This month's guest authors examine current protein sample preparation procedures and look at opportunities for improving performance.
GC Connections
A Century of Chromatography — Gas Analysis in the First 50 Years
Revisiting the years following Mikhail Tswett's first lecture on liquid-liquid adsorptive separations, John Hinshaw reviews the developments that established modern gas chromatography.
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