Details
| Original language | English |
|---|---|
| Pages (from-to) | 167-174 |
| Number of pages | 8 |
| Journal | International Journal for Ion Mobility Spectrometry |
| Volume | 19 |
| Issue number | 2 |
| Early online date | 4 Jun 2016 |
| Publication status | Published - Sept 2016 |
Abstract
Miniaturized low-cost drift tubes with high analytical performance are a key component for the design of powerful and mass-deployable hand-held ion mobility spectrometers. Thus, a simple model that estimates the influence of the geometrical dimensions on the analytical performance is highly desirable for an effective design process. In this work, we present a simple procedure to predict peak distortion based on only the electrical field distribution inside the drift tube, which can be rapidly simulated using the finite element method. A simulation of the ion motion is not required. Based on these results, we developed an ion mobility spectrometer manufactured entirely from standard printed circuit boards (PCB). Since no additional components were used apart from electrical and gas connectors, ion source and metal grids, the presented ion mobility spectrometer is very simple and inexpensive. Nevertheless, the design provides a resolving power of 82 at a drift length of 50 mm and a drift voltage of 3 kV using a tritium ion source and a field switching shutter. The limits of detection for one second of averaging are 80 pptv for acetone, 35 pptv for dimethyl methylphosphonate and 180 pptv for methyl salicylate.
Keywords
- Drift tube, Low cost, PCB, Printed circuit board, Simulation
ASJC Scopus subject areas
- Chemistry(all)
- Spectroscopy
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In: International Journal for Ion Mobility Spectrometry, Vol. 19, No. 2, 09.2016, p. 167-174.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Simulation aided design of a low cost ion mobility spectrometer based on printed circuit boards
AU - Bohnhorst, A.
AU - Kirk, A. T.
AU - Zimmermann, S.
N1 - Funding information: This work has been supported by the German Federal Ministry of Economics and Technology (BMWi), under the Grant KF3238301NT3 upon decision of the German Bundestag.
PY - 2016/9
Y1 - 2016/9
N2 - Miniaturized low-cost drift tubes with high analytical performance are a key component for the design of powerful and mass-deployable hand-held ion mobility spectrometers. Thus, a simple model that estimates the influence of the geometrical dimensions on the analytical performance is highly desirable for an effective design process. In this work, we present a simple procedure to predict peak distortion based on only the electrical field distribution inside the drift tube, which can be rapidly simulated using the finite element method. A simulation of the ion motion is not required. Based on these results, we developed an ion mobility spectrometer manufactured entirely from standard printed circuit boards (PCB). Since no additional components were used apart from electrical and gas connectors, ion source and metal grids, the presented ion mobility spectrometer is very simple and inexpensive. Nevertheless, the design provides a resolving power of 82 at a drift length of 50 mm and a drift voltage of 3 kV using a tritium ion source and a field switching shutter. The limits of detection for one second of averaging are 80 pptv for acetone, 35 pptv for dimethyl methylphosphonate and 180 pptv for methyl salicylate.
AB - Miniaturized low-cost drift tubes with high analytical performance are a key component for the design of powerful and mass-deployable hand-held ion mobility spectrometers. Thus, a simple model that estimates the influence of the geometrical dimensions on the analytical performance is highly desirable for an effective design process. In this work, we present a simple procedure to predict peak distortion based on only the electrical field distribution inside the drift tube, which can be rapidly simulated using the finite element method. A simulation of the ion motion is not required. Based on these results, we developed an ion mobility spectrometer manufactured entirely from standard printed circuit boards (PCB). Since no additional components were used apart from electrical and gas connectors, ion source and metal grids, the presented ion mobility spectrometer is very simple and inexpensive. Nevertheless, the design provides a resolving power of 82 at a drift length of 50 mm and a drift voltage of 3 kV using a tritium ion source and a field switching shutter. The limits of detection for one second of averaging are 80 pptv for acetone, 35 pptv for dimethyl methylphosphonate and 180 pptv for methyl salicylate.
KW - Drift tube
KW - Low cost
KW - PCB
KW - Printed circuit board
KW - Simulation
UR - http://www.scopus.com/inward/record.url?scp=84986203565&partnerID=8YFLogxK
U2 - 10.15488/4404
DO - 10.15488/4404
M3 - Article
AN - SCOPUS:84986203565
VL - 19
SP - 167
EP - 174
JO - International Journal for Ion Mobility Spectrometry
JF - International Journal for Ion Mobility Spectrometry
SN - 1435-6163
IS - 2
ER -