Journal
ANALYTICAL CHEMISTRY
Volume 82, Issue 2, Pages 746-750Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ac902009c
Keywords
-
Categories
Funding
- Isfahan University of Technology (IUT), Iran
- Center of Excellence for Sensor and Green Chemistry of IUT
Ask authors/readers for more resources
A novel method is proposed for enhancing the separation power of ion mobility spectrometry (IMS) and other similar pulsed techniques, such as time-of-flight mass spectrometry. In this technique, rather than generating an ion packet, a dip is created in the ion beam. Ibis is achieved by an inverse pulse applied to the shutter grid. The dip moves with the same velocity as the ion packet, and the detector reads an inverse peak at the same drift time as that of the normal operation. Using this technique, we achieved 30-60% higher resolution compared to the normal method. In addition, two close peaks that were not resolved via normal IMS were well resolved to the baseline using this technique. The main reason for the increased resolution is likely the absence of space charge in the clip.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available