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Sample Processing at Pittcon® 2014
Tuesday, May 06, 2014
Application Note
Robert L. Stevenson, Ph.D.
The tenfold increase in speed for the analytics (GC, HPLC, and SFC [supercritical fluid chromatography], all with MS) over the last decade has shifted the choke point in many workflows from analytics ... read more
How Solid-Phase Extraction Affects Challenges in Bioanalysis
Wednesday, February 05, 2014
Application Note
Mike Oliver Tim Liddicoat Ken Meadows
Modern bioanalytical laboratories are tasked with providing high-quality analytical results from complex biological samples in a high-throughput environment. These needs have to be balanced with the ... read more
Sample Prep for LC, GC, and SFC at Pittcon® 2013
Friday, May 10, 2013
Technical Article
Robert L. Stevenson, Ph.D.
At Pittcon® 2013, sample prep stood out as a major focus, perhaps because of the few advances in chromatography instrumentation. In addition, some sample preparation is spilling over into other ... read more
Product Intelligence: Solid Phase Extraction Systems
Monday, February 25, 2013
Technical Article

Solid phase extraction, or SPE, is used to isolate pollutants in water and pesticides in food, isolate drugs in blood and tissue samples, and separate proteins from a mixture, among other applications... read more
Increasing Throughput and Recoveries for Highly Particulate and Sediment Laden Aqueous Samples Using...
Tuesday, October 09, 2012
Application Note
David Gallagher Michael Ebitson
Samples that contain large amounts of sediment or particulates are difficult to extract using U.S. EPA Method 3535 (SPE, solid-phase extraction). While a standard 47-mm SPE disk is able to process a ... read more
Optimizing HPLC Sample Preparation
Monday, February 06, 2012
Technical Article
Caitlin Smith
Sample preparation is an important component for analysis in high-performance liquid chromatography (HPLC)/ultra high-performance liquid chromatography (UHPLC). This article outlines commonly used ... read more
Product Intelligence: Rheometry Buyers' Guide
Sunday, January 01, 2012
Technical Article
Jeffrey M. Perkel
This article is a valuable guide to choosing a rheometer including application, ease of use, configurability, viscosity range, and geometry type. Among the basic types discussed are a rotational ... read more
Focus on Columns and Consumables at Pittcon® 2011
Tuesday, May 10, 2011
Technical Article
Robert L. Stevenson, Ph.D.
Columns, chemicals, and consumables (CCCs) account for more than 30% of the chromatography market. read more
Statistics in Analytical Chemistry: Part 25—Calibration Summary
Thursday, February 01, 2007
Technical Article
David Coleman Lynn Vanatta
In a modern chemical-analysis laboratory, virtually all of the testing equipment must be calibrated periodically. read more
Centrifuge Safety and Security
Thursday, February 01, 2007
Application Note
Tammy Goodman
For laboratories around the world, increasing health and safety legislation requires that equipment be operated and maintained so that every step is taken to maximize safety and security. read more
Reagent-Free Ion Chromatography Systems With Eluent Regeneration: RFIC-ER Systems
Thursday, February 01, 2007
Application Note
Yan Liu Zhongqing Lu Chris Pohl John Madden Navette Shirakawa
Since the introduction of ion chromatography (IC) in 1975, Dionex Corp. (Sunnyvale, CA) has continued to improve the performance of IC systems while developing new capabilities for the determination ... read more
The Nanoliter Syringes
Thursday, February 01, 2007
Technical Article
Andrew D. Sauter
Following an informal collaboration with Affymax (Palo Alto, CA), Agilent Technologies (Palo Alto, CA), and Chem-Space Associates (Pittsburgh, PA), studying electrospray ionization 1 (ESI), the ... read more