Ambient ionization source based on a dielectric barrier discharge for direct testing of pharmaceuticals using ion mobility spectrometry

• Published in: Analytica chimica acta Vol. 1195; p. 339432
• Main Authors: Chantipmanee, Nattapong, Furter, Jasmine S., Hauser, Peter C.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 22.02.2022
• Subjects: Ambient desorption/ionization source; Caffeine; Coffee; Dielectric barrier discharge; Drug analysis; Electrodes; Ion Mobility Spectrometry; Pharmaceutical Preparations; Ambient desorption/ionization source; Ion mobility spectrometry; Dielectric barrier discharge; Drug analysis

The instrument is based on a miniature plasma source mounted at an oblique angle close to the injection gate of the ion mobility spectrometer. The plasma torch consists of two 5 mm wide external cylindrical electrodes, 10 mm apart, which are placed coaxially around a fused silica tube (1.5 mm i.d. a...