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Schilling GD, Ray SJ, Rubinshtein AA, et al. Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph. Anal Chem. 2009;81(13):5467-73doi: 10.1021/ac900640m.
Schilling, G. D., Ray, S. J., Rubinshtein, A. A., Felton, J. A., Sperline, R. P., Denton, M. B., Barinaga, C. J., Koppenaal, D. W., & Hieftje, G. M. (2009). Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph. Analytical chemistry, 81(13), 5467-73. https://doi.org/10.1021/ac900640m
Schilling, Gregory D, et al. "Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph." Analytical chemistry vol. 81,13 (2009): 5467-73. doi: https://doi.org/10.1021/ac900640m
Schilling GD, Ray SJ, Rubinshtein AA, Felton JA, Sperline RP, Denton MB, Barinaga CJ, Koppenaal DW, Hieftje GM. Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph. Anal Chem. 2009 Jul 01;81(13):5467-73. doi: 10.1021/ac900640m. PMID: 19462968.
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Anal Chem. 2009 Jul 01;81(13):5467-73. doi: 10.1021/ac900640m.

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

Analytical chemistry

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

Affiliations

  1. Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA.

PMID: 19462968 DOI: 10.1021/ac900640m

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.

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