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LCGC North America-05-01-2007
LCGC North America
Chiral HPLC Columns
May 01, 2007
Departments
25
5
Chiral technology has become a very important aspect for scientists involved in the pharmaceutical, chemical, and agricultural industries. The chiral enantiomers can have vitally different pharmacological effects in biological systems. In fact, the U.S. Food and Drug Administration mandates that only therapeutically active isomers must be introduced to the prescription drug market.
Solid-Phase Extraction pipette Tip Sample Preparation for Membrane Protein Intact Mass Analysis by MALDI–MS
May 01, 2007
Peer-Reviewed Articles
25
5
Analysis by mass spectrometry (MS) of integral membrane proteins and those associated with membrane is an important aspect of proteomics.
Validation and Peptide Mapping
May 01, 2007
Validation Viewpoint
25
5
Peptide mapping is one of the preferred techniques for the comprehensive characterization of biopharmaceutical products and is often the analytical method of choice for studying a protein's primary structure.
Peaks of Interest
May 01, 2007
Departments
25
5
Phenomenex, Inc. (Torrance, California) announced that it has acquired Chemtek Analytica S.R.L. (Bologna, Italy), a subsidiary of Labservice Analytica S.R.L., and privately held SupWare (Hilleroed, Denmark).
A Comparison of Two Separation Modes: HILIC and Aqueous Normal Phase Chromatography
May 01, 2007
Peer-Reviewed Articles
25
5
The terms hydrophilic interaction liquid chromatography (HILIC) and aqueous normal phase (ANP) chromatography very often are used interchangeably.
QuEChERS - A New Sample Preparation Technique for Multiresidue Analysis of Pesticides in Foods and Agricultural Samples
May 01, 2007
Sample Prep Perspectives
25
5
This month's installment of "Sample Prep Perspectives" describes a new extraction technique called QuEChERS (standing for quick, easy, cheap, effective, and safe and is pronounced "catchers") for the sample preparation of pesticides in foods and agricultural samples.
How Does Temperature Affect Selectivity?
May 01, 2007
LC Troubleshooting
25
5
Is it more than meets the eye?
New Gas Chromatograpy Products at Pittcon 2007
May 01, 2007
GC Connections
25
5
The 58th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy was held February 25 to March 1, 2007, at McCormick Place in Chicago, Illinois.