Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph

Gregory D. Schilling, Steven J. Ray, Arnon A. Rubinshtein, Jeremy A. Felton, Roger P. Sperline, M Bonner Denton, Charles J. Barinaga, David W. Koppenaal, Gary M. Hieftje

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

A 512-channel Faraday-strip array detector has been developed and fitted to a Mattauch-Herzog geometry mass spectrograph for the simultaneous acquisition of multiple mass-to-charge values. Several advantages are realized by using simultaneous detection methods, including higher duty cycles, removal of correlated noise, and multianalyte transient analyses independent of spectral skew. The new 512-channel version offers narrower, more closely spaced pixels, providing improved spectral peak sampling and resolution. In addition, the electronics in the amplification stage of the new detector array incorporate a sample-and-hold feature that enables truly simultaneous interrogation of all 512 channels. While sensitivity and linear dynamic range remain impressive for this Faraday-based detector system, limits of detection and isotope ratio data have suffered slightly from leaky p-n junctions produced during the manufacture of the semiconductor-based amplification and readout stages. This paper describes the new 512-channel detector array, the current dominant noise sources, and the figures of merit for the device as pertaining to inductively coupled plasma ionization.

Original languageEnglish (US)
Pages (from-to)5467-5473
Number of pages7
JournalAnalytical Chemistry
Volume81
Issue number13
DOIs
StatePublished - Jul 1 2009

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Spectrographs
Inductively coupled plasma
Detectors
Amplification
Isotopes
Ionization
Electronic equipment
Pixels
Semiconductor materials
Sampling
Geometry

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph. / Schilling, Gregory D.; Ray, Steven J.; Rubinshtein, Arnon A.; Felton, Jeremy A.; Sperline, Roger P.; Denton, M Bonner; Barinaga, Charles J.; Koppenaal, David W.; Hieftje, Gary M.

In: Analytical Chemistry, Vol. 81, No. 13, 01.07.2009, p. 5467-5473.

Research output: Contribution to journalArticle

Schilling, GD, Ray, SJ, Rubinshtein, AA, Felton, JA, Sperline, RP, Denton, MB, Barinaga, CJ, Koppenaal, DW & Hieftje, GM 2009, 'Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph', Analytical Chemistry, vol. 81, no. 13, pp. 5467-5473. https://doi.org/10.1021/ac900640m
Schilling, Gregory D. ; Ray, Steven J. ; Rubinshtein, Arnon A. ; Felton, Jeremy A. ; Sperline, Roger P. ; Denton, M Bonner ; Barinaga, Charles J. ; Koppenaal, David W. ; Hieftje, Gary M. / Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph. In: Analytical Chemistry. 2009 ; Vol. 81, No. 13. pp. 5467-5473.
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