In our November issue:
COLUMNS
LC TROUBLESHOOTING
Early Eluted Peak
What could be causing a peak to be eluted before the column dead time?
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New Agilent 1260 Infinity II LC
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GC CONNECTIONS
Gas Cylinder Safety: Setup and Use
This month's “GC Connections” continues the discussion of procedures for safe setup, use, and disposal of compressed gas cylinders in the chromatography laboratory. Read more >> |
SAMPLE PREPARATION PERSPECTIVES
Dried Blood Spots in Bioanalysis
DBS sampling holds several advantages associated with the use of small sample sizes obtained via finger pricks, including simplicity and biohazard reduction. This month, Doug Raynie digs a little deeper into bioanalysis using DBS sampling. Read more >> |
MS – THE PRACTICAL ART
An MS-Based Screening Method for Tricyclic Antidepressants
This direct-analysis MS method is more accurate than immunoassay screening and requires no special instrumentation. Read more >> |
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PEER-REVIEWED ARTICLES
Characterizing Pharmaceuticals
On-line two-dimensional liquid chromatography (2D-LC) embracing mainly comprehensive LC (LC×LC) and multiple heart-cutting LC (mLC–LC) offers new opportunities for in-depth characterization of pharmaceuticals. The combination reversed-phase LC × reversed-phase LC using different column chemistries and mobile phases provides good orthogonality for a wide range of applications related to small molecule drugs. Read more >>
A New Chiral Ligand for CE Separation of Amino Acid Enantiomers
A chiral ionic liquid was applied as a new chiral ligand for the separation of tryptophan, tyrosine, and phenylalanine enantiomers. Read more >>
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