Details
| Original language | English |
|---|---|
| Pages (from-to) | 69-74 |
| Number of pages | 6 |
| Journal | International Journal for Ion Mobility Spectrometry |
| Volume | 23 |
| Issue number | 2 |
| Early online date | 7 May 2020 |
| Publication status | Published - Oct 2020 |
Abstract
The drift voltage required for operating ion mobility spectrometers implies high voltage isolation of either the ion source or the detector. Typically, the detector is grounded due to the sensitivity of the small ion currents to interferences and thus higher requirements for signal integrity than the ion source. However, for certain ion sources, such as non-radioactive electron emitters or electrospray ionization sources, or for coupling with other instruments, such as gas or liquid chromatographs, a grounded ion source is beneficial. In this paper, we present an isolated data acquisition interface using a 16 bit, 250 kilosamples per second analog to digital converter and fiber optic transmitters and receivers. All spectra recorded via this new data acquisition interface and with a grounded ion source show the same peak shapes and noise when compared with a grounded detector, allowing additional freedom in design.
Keywords
- Amplifier, Data acquisition, Floating, Grounded ion source, Ion mobility spectrometer, Isolated
ASJC Scopus subject areas
- Chemistry(all)
- Spectroscopy
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In: International Journal for Ion Mobility Spectrometry, Vol. 23, No. 2, 10.2020, p. 69-74.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - IMS Instrumentation I
T2 - Isolated data acquisition for ion mobility spectrometers with grounded ion sources
AU - Lippmann, Martin
AU - Kirk, Ansgar T.
AU - Hitzemann, Moritz
AU - Zimmermann, Stefan
N1 - Funding information: Open Access funding provided by Projekt DEAL. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 396430937.
PY - 2020/10
Y1 - 2020/10
N2 - The drift voltage required for operating ion mobility spectrometers implies high voltage isolation of either the ion source or the detector. Typically, the detector is grounded due to the sensitivity of the small ion currents to interferences and thus higher requirements for signal integrity than the ion source. However, for certain ion sources, such as non-radioactive electron emitters or electrospray ionization sources, or for coupling with other instruments, such as gas or liquid chromatographs, a grounded ion source is beneficial. In this paper, we present an isolated data acquisition interface using a 16 bit, 250 kilosamples per second analog to digital converter and fiber optic transmitters and receivers. All spectra recorded via this new data acquisition interface and with a grounded ion source show the same peak shapes and noise when compared with a grounded detector, allowing additional freedom in design.
AB - The drift voltage required for operating ion mobility spectrometers implies high voltage isolation of either the ion source or the detector. Typically, the detector is grounded due to the sensitivity of the small ion currents to interferences and thus higher requirements for signal integrity than the ion source. However, for certain ion sources, such as non-radioactive electron emitters or electrospray ionization sources, or for coupling with other instruments, such as gas or liquid chromatographs, a grounded ion source is beneficial. In this paper, we present an isolated data acquisition interface using a 16 bit, 250 kilosamples per second analog to digital converter and fiber optic transmitters and receivers. All spectra recorded via this new data acquisition interface and with a grounded ion source show the same peak shapes and noise when compared with a grounded detector, allowing additional freedom in design.
KW - Amplifier
KW - Data acquisition
KW - Floating
KW - Grounded ion source
KW - Ion mobility spectrometer
KW - Isolated
UR - http://www.scopus.com/inward/record.url?scp=85084306805&partnerID=8YFLogxK
U2 - 10.1007/s12127-020-00260-5
DO - 10.1007/s12127-020-00260-5
M3 - Article
AN - SCOPUS:85084306805
VL - 23
SP - 69
EP - 74
JO - International Journal for Ion Mobility Spectrometry
JF - International Journal for Ion Mobility Spectrometry
SN - 1435-6163
IS - 2
ER -