Calibration Curves, Part I: To b or Not to b?
This month's "LC Troubleshooting" looks at some different calibration models, how to decide if a calibration curve goes through zero, and some problems that can occur if the wrong choices are made.
Electrostatic Repulsion Hydrophilic Interaction Chromatography
ERLIC is a new technique that shows promise as an alternative or complementary technique for both enrichment and separation of these posttranslationally-modified peptides.
Separation, Identification, and Quantitation of Water-Soluble Vitamins by HPLC
The authors set out to perform a separation of seven water-soluble vitamins without the use of ion-pair reagents.
New Chromatography Columns and Accessories at Pittcon 2009: Part I
Ron Majors brings readers his yearly review of all that was new and innovative at the annual Pittsburgh Conference.
The 2009 LCGC Awards
LCGC hands out a pair of awards at Pittcon 2009 in Chicago.
Pinning Down Tailing Peaks
The causes and cures for peak tailing are discussed, along with the various ways that chromatographers measure tailing peaks.
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