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Techniques & Tools Environmental, Chemical, Gas Chromatography, Liquid Chromatography

A Closer Look at the Bigger Picture

The latest high-throughput and powerful chromatographs and mass analyzers have found their rightful place in analytical laboratories worldwide. These instruments provide an extraordinary amount of high-quality data, especially comprehensive two-dimensional chromatography (for example, GC×GC or LC×LC) and/or high-resolution mass spectrometers.

One rising star in analytical chemistry is the combination of the pixel-based approach with non-targeted analysis. Here, we aim to look at the whole spectrum of chemical compounds in the samples by using the entire chromatogram in the data analysis, instead of individual peak picking and integrations. The great advantage is that the chemical differences between samples is highlighted in a broader way, particularly useful in petroleum and oil characterization, omics-based studies and the analysis of environmental pollution.

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About the Author

Guilherme L. Alexandrino, Josephine Lübeck and Jan. H. Christensen

Guilherme Alexandrino, Josephine Lübeck and Jan Christensen are based in the Analytical Chemistry Group, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark.

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