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LCGC North America-06-01-2001
LCGC North America
Determining Specificity in a Regulated Environment
June 01, 2001
Validation Viewpoint
19
6
Krull and Swartz describe how chromatographers can determine peak purity and identity using new software programs.
When Good Columns Go Bad
June 01, 2001
GC Connections
19
6
Hinshaw looks at causes and modes of premature column failure and at practices that ensure the longest possible column life.
Analysis of Weak UV-Absorbing Pharmaceutical Drug Substances Using CE with Condensation Nucleation Light-Scattering Detection
June 01, 2001
Article
19
6
The authors descibe the use of CE with condensation nucleation light-scattering detection to analyze three pharmaceutical analytes. Because the compounds lack adequate UV chromophores, they require a more sensitive means of detection.
Embedded-Polar-Group Bonded Phases for High Performance Liquid Chromatography
June 01, 2001
Featured Article
19
6
The authors compare the chromatographic properties of embedded-carbamate-group bonded phases with those of their purely alkyl counterparts.
High-Speed Analysis of Volatile Organic Compounds in Environmental Samples Using Small-Diameter Capillary Columns and Purge-and-Trap GC–MS Systems
June 01, 2001
Column Watch
19
6
Guest author Cameron George discusses recent advances in purge-and-trap systems that enable considerable reduction in analysis times.
Resin Screening to Optimize Chromatographic Separations
June 01, 2001
Article
19
6
The author presents an approach to screen resins for chromatographic optimization in the purification process of a protein drug substance.
Buffers and Baselines
June 01, 2001
LC Troubleshooting
19
6
This month's "LC Troubleshooting" focuses on the baseline characteristics of several common LC buffers and methods to minimize drift.