| | | | | 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.
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| | | | 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."
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| | | | 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.
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| | | | 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.
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| | | | 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.
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| | | | 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 GCMS
| | | 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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