1. A highly efficient magnetically confined ion source for real time on-line monitoring of trace compounds in ambient air
- Author
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Zhongjun Zhao, Bingying Lei, Pei Zhang, Yixiang Duan, Jie Tang, and Xuelu Ding
- Subjects
Detection limit ,Glow discharge ,Materials science ,010401 analytical chemistry ,Metals and Alloys ,Analytical chemistry ,Magnetic confinement fusion ,02 engineering and technology ,General Chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Catalysis ,Ion source ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Magnetic field ,Materials Chemistry ,Ceramics and Composites ,0210 nano-technology ,Order of magnitude ,Ion transporter ,Line (formation) - Abstract
We fabricate a high-efficient ion source for real time on-line monitoring of trace compounds in ambient air by introducing a weak longitudinal magnetic field to a micro-fabricated DC glow discharge. Mass spectrometric detection of various samples indicates that the signal intensity increases by an order of magnitude and the limit of detection can be lowered to 1/10 of the original level. This improvement results from the increasing ion transport efficiency through the magnetic confinement.
- Published
- 2018
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