Gas Chromatography

Sandwich Injections

In this article we discuss the merits and deficiencies of sandwich injection techniques.

Inlet Activity

In this article we discuss issues related to inlet and liner activity.

Calibration Curves – Standard Addition

In this article we discuss the calibration technique of standard addition.

Calibration Curves – Part 2, Internal Standard Approach

This technical article covers the internal standard method of GC calibration.

Calibration Curves – Part 1

This technical article discusses general approaches to GC response calibration and focuses on the simplest; external calibration.

All About GC Ferrules – Part 2, Graphite and Polymeric Ferrules

In this article we continue the previous discussion of ferrules used in gas chromatography.

All About GC Ferrules – Part 1, Metal Ferrules

In this article we cover the first part of an important and often neglected topic: ferrules.

Uncoated Pre-Column Backflush Configuration

Under discussion is one of the newer approaches to capillary column backflush: the uncoated pre-column configuration.

Coated Pre-Column Backflush

Continuing our discussion of the three configurations of capillary column backflush, we cover the coated pre-column configuration.

Post Column Backflush

We continue the previous article's backflush discussion with a description of the most common form of backflush: post-column backflush.

Capillary Column Backflush

In this technical article we introduce the concepts of backflushing capillary columns.

The Flame Ionization Detector – Part 2

Continuing the previous discussion of the most popular GC detector, the FID, we cover deviations from typical unit carbon response, optimization and troubleshooting.

The Flame Ionization Detector - Part 1

In this technical article we initiate a discussion on the workhorse detector of gas chromatography: the flame ionization detector.

Basis of Interactions in Gas Chromatography – Part 3: Stationary Phase Selectivity, Glass Half Full?

In Part 3 we bring together the retention mechanism concepts discussed earlier to form a simple view of the nature of selectivity in liquid stationary phases used in gas chromatography.

Basis of Interactions in Gas Chromatography – Part 2: Polar Interactions

To fully grasp the concepts of retention and selectivity of GC stationary phases, one must first understand the fundamental intermolecular interactions that lead to retention. In the second part of this series we discuss polar interactions; the...

Stay ahead and improve your skills!
Receive tailored information on new
separation science methods and applications.
 
Register for free learning now >>