Smith, Barry Lee 
ORCID: 0000-0001-5571-3647, Boisdon, Cedric, Young, Iain S ORCID: 0000-0002-9502-6216, Praneenararat, Thanit, Vilaivan, Tirayut and Maher, Simon
(2020)
Flexible Drift Tube for High Resolution Ion Mobility Spectrometry (Flex-DT-IMS).
Analytical chemistry, 92 (13).
pp. 9104-9112.
Abstract
This paper describes, in detail, the development of a novel, low-cost and flexible drift tube (DT) along with an associated ion mobility spectrometer system. The DT is constructed from a flexible printed circuit board (PCB), with a bespoke 'dog-leg' track design, that can be rolled up for ease of assembly. The approach incorporates a shielding layer, as part of the flexible PCB design, and represents the minimum dimensional footprint conceivable for a DT. The low thermal mass of the polyimide substrate and overlapping electrodes, as afforded by the dog-leg design, allow for efficient heat management and high field linearity within the tube - achieved from a single PCB. This is further enhanced by a novel double-glazing configuration which provides a simple and effective means for gas management, minimizing thermal variation within the assembly. Herein, we provide a full experimental characterization of the flexible DT ion mobility spectrometer (Flex-DT-IMS) with corresponding electrodynamic (Simion 8.1) and fluid dynamic (SolidWorks) simulations. The Flex-DT-IMS is shown to have a resolution >80 and a detection limit of low nanograms for the analysis of common explosives (RDX, PETN, HMX and TNT).
| Item Type: | Article |
|---|---|
| Depositing User: | Symplectic Admin |
| Date Deposited: | 22 Jun 2020 09:49 |
| Last Modified: | 18 Jan 2023 23:48 |
| DOI: | 10.1021/acs.analchem.0c01357 |
| Open Access URL: | https://pubs.acs.org/doi/full/10.1021/acs.analchem... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3090825 |
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