Sample Preparation Techniques - Chromatography Online
Sample Preparation Techniques
LCGC editorial, peer-reviewed research articles, and opinion pieces covering sample preparation techniques.

Exploring the Possibilities of High-Throughput Sample Preparation

June 1, 2014

In sample preparation, what does "high-throughput" really mean?

Automating Analysis of Pain Management Drugs in Urine

May 12, 2014

This article discusses the benef ts of using automated dispersive solid-phase extraction (dSPE) rather than standard SPE in urine analysis.

The Role of Selectivity in Extractions: A Case Study

February 1, 2014

In this column, the selective removal of a fat-substitute in food products is discussed to demonstrate options for obtaining selectivity during extraction.

Microwave Accelerated Extraction — SW-846 Method 3546 and Beyond

November 1, 2013

Microwave accelerated extraction (MAE) was evaluated by the authors of this review in 1999 (1). Since this time, the United States Environmental Protection Agency (USEPA) has promoted the use of SW-846 Method 3546 using MAE for the extraction of organic compounds from solid matrices.

Application of Existing Sample Preparation Technologies to New Areas

November 1, 2013

Some sample preparation techniques that were introduced in the past are now being used for new applications.

Analytical Supercritical Fluid Extraction Goes Back to the Future

November 1, 2013

The past and future development of analytical supercritical fluid extraction (SFE) is traced in terms of experimental strategies, applications, vendor support, and timely acceptance of the existing technology.

Green Chemistry Perspectives on Analytical Extractions

November 1, 2013

The growing interest in green chemistry requires fresh perspectives on analytical extractions. Reduced solvent consumption, alternative safer solvents, and reasonable energy demands must be balanced with traditional analytical considerations such as extraction yield and selectively.

Sample Preparation for Chromatography: How Much Can Be Automated?

November 1, 2013

Modern autosamplers and workstations possess a range of capabilities, in addition to simple liquid handling, that allow automation of sample preparation steps traditionally performed manually.

Recent Advances in Pressurized Fluid Extraction

November 1, 2013

Pressurized fluid extraction (PFE) is an automated extraction technique that uses elevated temperature and pressure to increase the rate and efficiency of the extraction process.


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Sample Prep Perspectives | Ronald E. Majors: Ron Majors, established authority on new column technologies, keeps readers up-to-date with new sample preparation trends in all branches of chromatography and reviews developments.
LATEST: UV Detector Problems

Perspectives in Modern HPLC | Michael W. Dong: Michael W. Dong is a senior scientist in Small Molecule Drug Discovery at Genentech in South San Francisco, California. He is responsible for new technologies, automation, and supporting late-stage research projects in small molecule analytical chemistry and QC of small molecule pharmaceutical sciences. LATEST: Superficially Porous Particles: Perspectives, Practices, and Trends

MS — The Practical Art | Kate Yu: Kate Yu brings her expertise in the field of mass spectrometry and hyphenated techniques to the pages of LCGC. In this column she examines the mass spectrometric side of coupled liquid and gas-phase systems. Troubleshooting-style articles provide readers with invaluable advice for getting the most from their mass spectrometers. LATEST: Radical Mass Spectrometry as a New Frontier for Bioanalysis

LC Troubleshooting | John Dolan: LC Troubleshooting sets about making HPLC methods easier to master. By covering the basics of liquid chromatography separations and instrumentation, John Dolan is able to highlight common problems and provide remedies for them. LATEST: Problems with Large-Molecule Separations

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