A sensitive gas chromatography detector based on atmospheric pressure chemical ionization by a dielectric barrier discharge

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Kirk, A.T.; Last, T.; Zimmermann, S.: A sensitive gas chromatography detector based on atmospheric pressure chemical ionization by a dielectric barrier discharge. In: Journal of Chromatography A 1483 (2017), S. 120-126. DOI: https://doi.org/10.1016/j.chroma.2016.12.071

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Sum total of downloads: 26

In this work, we present a novel concept for a gas chromatography detector utilizing an atmospheric pressure chemical ionization which is initialized by a dielectric barrier discharge. In general, such a detector can be simple and low-cost, while achieving extremely good limits of detection. However, it is non-selective apart from the use of chemical dopants. Here, a demonstrator manufactured entirely from fused silica capillaries and printed circuit boards is shown. It has a size of 75 × 60 × 25 mm3 and utilizes only 2W of power in total. Unlike other known discharge detectors, which require high-purity helium, this detector can theoretically be operated using any gas able to form stable ion species. Here, purified air is used. With this setup, limits of detection in the low parts-per-billion range have been obtained for acetone.
License of this version: CC BY-NC-ND 3.0
Document Type: article
Publishing status: acceptedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Elektrotechnik und Informatik

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1 image of flag of Germany Germany 12 46.15%
2 image of flag of France France 5 19.23%
3 image of flag of China China 5 19.23%
4 image of flag of Romania Romania 1 3.85%
5 image of flag of Korea, Republic of Korea, Republic of 1 3.85%
6 image of flag of Canada Canada 1 3.85%
7 image of flag of Brazil Brazil 1 3.85%

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