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LCGC North America-11-01-2001
LCGC North America
Striving to Validate Nutraceuticals
November 01, 2001
Validation Viewpoint
19
11
Guest authors Thompson and Morris summarize the problems and progress in establishing regulated analytical methods for dietary supplements.
Marketplace
November 01, 2001
Inside
19
11
Products, literature, application notes, etc.
What Drives a Separation — the Stationary Phase or the Mobile Phase?
November 01, 2001
Article
19
11
The author investigates solute partitioning between the mobile and stationary phases to determine the driving force of reversed-phase liquid chromatography separations.
A Review of EPA Sample Preparation Techniques for Organic Compound Analysis of Liquid and Solid Samples
November 01, 2001
Sample Prep Perspectives
19
11
Guest author Greg LeBlanc reviews techniques for preparing non- and semivolatile compounds from environmental samples for analysis under the Environmental Protection Agency's SW-846 guidelines.
Retaining Polar Compounds
November 01, 2001
LC Troubleshooting
19
11
Dolan examines some options for increasing the retention of polar compounds, which is a goal when using gradient elution scouting runs to screen the retention characteristics of compounds for separation by reversed-phase liquid chromatography.
Handling Fast Peaks
November 01, 2001
GC Connections
19
11
Hinshaw examines the effects of system time constants and sampling rates upon apparent peak shapes and areas when performing fast gas chromatography.