Gas Chromatography

To develop a more in-depth understanding of gas chromatography-mass spectrometry. Deconvolution, use of H2 as a carrier gas, and tandem mass spectrometers are covered as special topics. Learn more about the mechanisms and benefits of deconvolution...

To develop a more in-depth understanding of gas chromatography-mass spectrometry. The framework for GC-MS quantitation is explained. Topics and examples include integration parameters, linear and non-linear calibrations, calibration table choices,...

To develop a more in-depth understanding of gas chromatography-mass spectrometry. The differences between scan and selected ion monitoring are explained. The principles of proper selection of data acquisition parameters are covered in detail.

To develop a more in-depth understanding of gas chromatography-mass spectrometry, this course module describes common GC-MS detectors.

To develop a more in-depth understanding of gas chromatography-mass spectrometry. The various detectors used in mass spectrometry are described. Design features that reduce background noise are presented as well as are the general concept of...

A successful lab requires more than just optmized workflows - at its heart it needs a confident, well-trained team of scientists.

Chromatographic laboratories face continual pressure to increase productivity while decreasing costs. With recent advances in available technology, additional flexibility in updated methods, and optimization of key instrument parameters, we can find...

Chromatographic laboratories face continual pressure to increase productivity while decreasing costs. With recent advances in available technology, additional flexibility in updated methods, and optimization of key instrument parameters, we can find...

Chromatographic laboratories face continual pressure to increase productivity while decreasing costs. With recent advances in available technology, additional flexibility in updated methods, and optimization of key instrument parameters, we can find...

In this article we continue our liner discussion with a focus on liner volume. One of the most important liner design variables is the internal volume. Larger internal volumes are preferred for general use because they minimize the chance of vapor...

Here we continue the discussion of inlet liners with a focus on liner outer diameter. It is important to realize that correct liner choice is most critical for:

Selecting an appropriate inlet liner from the myriad available liner choices is a daunting task, especially when there is little qualified technical information about what differentiates them in terms of actual performance. Here we start discussing...

Although gas chromatography has many positive attributes as an analytical tool, its incompatibility with labile and active compounds is certainly one of its biggest weaknesses. Here we discuss evidence of sample decomposition and what we might do to...

Continuing our saga of split sample introduction, here we discuss measuring gas flows and liner selection for split injections.

This technical article introduces the split sample concept and things to take note of for the best analytical results possible.