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Title: Improved Miniaturized Linear Ion Trap Mass Spectrometer Using Lithographically Patterned Plates and Tapered Ejection Slit

Abstract

We present a new two-plate linear ion trap mass spectrometer that overcomes both performance-based and miniaturization-related issues with prior designs. Borosilicate glass substrates are patterned with aluminum electrodes on one side and wire-bonded to printed circuit boards. Ions are trapped in the space between two such plates. Tapered ejection slits in each glass plate eliminate issues with charge build-up within the ejection slit and with blocking of ions that are ejected at off-nominal angles. The tapered slit allows miniaturization of the trap features (electrode size, slit width) needed for further reduction of trap size while allowing the use of substrates that are still thick enough to provide ruggedness during handling, assembly, and in-field applications. Plate spacing was optimized during operation using a motorized translation stage. A scan rate of 2300 Th/s with a sample mixture of toluene and deuterated toluene (D8) and xylenes (a mixture of o-, m-, p-) showed narrowest peak widths of 0.33 Th (FWHM). .

Authors:
 [1]; ; ;  [2]; ;  [1];  [2];  [3];  [2];  [1]
  1. Brigham Young University, Department of Chemistry and Biochemistry (United States)
  2. Brigham Young University, Department of Electrical and Computer Engineering (United States)
  3. PerkinElmer (United States)
Publication Date:
OSTI Identifier:
22776792
Resource Type:
Journal Article
Journal Name:
Journal of the American Society for Mass Spectrometry
Additional Journal Information:
Journal Volume: 29; Journal Issue: 2; Conference: 32. Asilomar conference on novel instrumentation in MS and ion mobility, Pacific Grove, CA (United States), 14-18 Oct 2016; Other Information: Copyright (c) 2018 American Society for Mass Spectrometry; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-0305
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ALUMINIUM; BOROSILICATE GLASS; ELECTRODES; IONS; MASS SPECTROMETERS; MINIATURIZATION; REDUCTION; RESOLUTION; TRAPS

Citation Formats

Tian, Yuan, Decker, Trevor K., McClellan, Joshua S., Bennett, Linsey, Li, Ailin, Cruz, Abraham De la, Andrews, Derek, Lammert, Stephen A., Hawkins, Aaron R., and Austin, Daniel E., E-mail: austin@chem.byu.edu. Improved Miniaturized Linear Ion Trap Mass Spectrometer Using Lithographically Patterned Plates and Tapered Ejection Slit. United States: N. p., 2018. Web. doi:10.1007/S13361-017-1759-Z.
Tian, Yuan, Decker, Trevor K., McClellan, Joshua S., Bennett, Linsey, Li, Ailin, Cruz, Abraham De la, Andrews, Derek, Lammert, Stephen A., Hawkins, Aaron R., & Austin, Daniel E., E-mail: austin@chem.byu.edu. Improved Miniaturized Linear Ion Trap Mass Spectrometer Using Lithographically Patterned Plates and Tapered Ejection Slit. United States. doi:10.1007/S13361-017-1759-Z.
Tian, Yuan, Decker, Trevor K., McClellan, Joshua S., Bennett, Linsey, Li, Ailin, Cruz, Abraham De la, Andrews, Derek, Lammert, Stephen A., Hawkins, Aaron R., and Austin, Daniel E., E-mail: austin@chem.byu.edu. Thu . "Improved Miniaturized Linear Ion Trap Mass Spectrometer Using Lithographically Patterned Plates and Tapered Ejection Slit". United States. doi:10.1007/S13361-017-1759-Z.
@article{osti_22776792,
title = {Improved Miniaturized Linear Ion Trap Mass Spectrometer Using Lithographically Patterned Plates and Tapered Ejection Slit},
author = {Tian, Yuan and Decker, Trevor K. and McClellan, Joshua S. and Bennett, Linsey and Li, Ailin and Cruz, Abraham De la and Andrews, Derek and Lammert, Stephen A. and Hawkins, Aaron R. and Austin, Daniel E., E-mail: austin@chem.byu.edu},
abstractNote = {We present a new two-plate linear ion trap mass spectrometer that overcomes both performance-based and miniaturization-related issues with prior designs. Borosilicate glass substrates are patterned with aluminum electrodes on one side and wire-bonded to printed circuit boards. Ions are trapped in the space between two such plates. Tapered ejection slits in each glass plate eliminate issues with charge build-up within the ejection slit and with blocking of ions that are ejected at off-nominal angles. The tapered slit allows miniaturization of the trap features (electrode size, slit width) needed for further reduction of trap size while allowing the use of substrates that are still thick enough to provide ruggedness during handling, assembly, and in-field applications. Plate spacing was optimized during operation using a motorized translation stage. A scan rate of 2300 Th/s with a sample mixture of toluene and deuterated toluene (D8) and xylenes (a mixture of o-, m-, p-) showed narrowest peak widths of 0.33 Th (FWHM). .},
doi = {10.1007/S13361-017-1759-Z},
journal = {Journal of the American Society for Mass Spectrometry},
issn = {1044-0305},
number = 2,
volume = 29,
place = {United States},
year = {2018},
month = {2}
}