LCGC Asia Pacific, Jun 1, 2006 - LCGC Asia Pacific
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Sample Prep Perspectives
Miniaturized Approaches to Conventional Liquid-Liquid Extraction
By Ronald E. Majors
Liquid-liquid extraction (LLE) is among the most widely used sample preparation methods. In this month's installment of "Sample Prep Perspectives," Ron Majors discusses newer LLE approaches that offer significant advantages over classical methods.
LC Troubleshooting
Dwell Volume Revisited
By John W. Dolan
John Dolan delves deeper into dwell volume, a subject that was touched upon in a recent installment of "LC Troubleshooting."
GC Connections
Syringes for Gas Chromatography
By John V. Hinshaw
John Hinshaw takes a look at how choosing a suitable syringe for a specific application can be difficult, especially if the inlet system has special requirements; choosing the wrong syringe can cause significant problems.
Validation Viewpoint
Method Validation and Robustness
By Michael Swartz , Ira Krull
The authors define robustness, introduce a few approaches to designing a robust study, and discuss data analysis necessary to help ensure successfull method implementation and transfer as a part of method validation protocol.
Articles
How to Retain Polar and Nonpolar Compounds on the Same HPLC Stationary Phase with an Isocratic Mobile Phase
By Joseph J. Pesek , Maria T. Matyska
Separation and retention of both polar and nonpolar compounds by the same stationary phase can be a useful approach for analyses of complex samples with a broad range of chemical properties.
Analysis of Volatile Bacterial Metabolites by Gas Chromatography–Mass Spectrometry
By William L. Wood , Daniel J. Higbee , Melanie Gooldy , Scott Glogowski , Rich Fitzpatrick , Richard J. Karalus , Troy D. Wood , David J. Mangino
The authors describe a new method for the identification of key volatile organic compound (VOC) markers.
Stephen Dal Nogare: The Person Behind the Award
By Robert L. Grob , Mary A. Kaiser
The Stephen Dal Nogare award is one of the oldest and most prestigious awards given in chromatography. Little has been written about Stephen Dal Nogare "the man" or his contributions to scientific knowledge, including his unique contributions to separations science. This article describes his scientific career and how it has influenced the practice of chromatography.
Application Notes
UV Transparent Fluoropolymer Coated Capillary Tubing
Joe Macomber, Polymicro Technologies, LLC
Acclaim Explosives Columns — Complete Solution for U.S. EPA Method 8330
Xiaodong Liu, Andrei Bordunov and Chris Pohl, Dionex Corporation
Optimizing PAH LC/PDA Separation Using Fully-Automated Spectral Processing
Alessandro Baldi and Francis Vandemark, PerkinElmer Life and Analytical Sciences
Enhanced Retention of Polar Analytes Utilizing Novel 1.7 µm UPLC Particles for HIC
Eric S. Grumbach, Thomas E. Wheat, and Jeffrey R. Mazzeo, Waters Corporation
Rapid Extraction and Determination of Arsenicals in Fish Tissue and Carrots Using ASE
J. Peterson, B. Richter, and S. Henderson, Dionex Corporation
Determination of Biogenic Amines in Spoiled Cheese by Ion Chromatography
Brian De Borba and Jeff Rohrer, Dionex Corporation
Environmental Volatile Organic Compounds (VOCs) by Headspace Trap with GC–MS
Heidi Grecsek, PerkinElmer Life and Analytical Sciences
Analysis of Cis and Trans Fatty Acid Methyl Esters from Margarine by Capillary GC
Robert Wiedemer, Grace Davison Discovery Sciences
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