Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph. 2. Use with an Inductively Coupled Plasma

James H. Barnes IV, Gregory D. Schilling, Roger Sperline, M Bonner Denton, Erick T. Young, Charles J. Barinaga, David W. Koppenaal, Gary M. Hieftje

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

A novel charge-sensitive detector array, termed the focal plane camera (FPC), has been coupled to a Mattauch-Herzog mass spectrograph (MHMS) with an inductively coupled plasma ionization source. The FPC employs an array of gold Faraday cups, each with its own charge. integrating circuit that allows the simultaneous detection of several m/z ratios. The ion-sampling interface of the MHMS has been redesigned to provide better heat transfer away from the sampler and skimmer cones and to reduce the negative effects of turbulent gas flows around the plasma. The instrument has produced limits of detection in the tens to hundreds of parts per quadrillion regime and isotope ratio accuracy and precision of 5% error and 0.007% RSD, respectively. Limits of detection with the FPC are comparable to those obtained with a single-channel secondary electron multiplier (SEM). However, the isotope ratio accuracy and precision are better with the FPC than when the SEM is employed. The dynamic range has been shown to be linear over 7 orders of magnitude.

Original languageEnglish (US)
Pages (from-to)2531-2536
Number of pages6
JournalAnalytical Chemistry
Volume76
Issue number9
DOIs
StatePublished - May 1 2004

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Spectrographs
Inductively coupled plasma
Cameras
Electron multipliers
Geometry
Isotopes
Integrating circuits
Ion sources
Gold
Flow of gases
Cones
Ions
Sampling
Heat transfer
Detectors
Plasmas

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph. 2. Use with an Inductively Coupled Plasma. / Barnes IV, James H.; Schilling, Gregory D.; Sperline, Roger; Denton, M Bonner; Young, Erick T.; Barinaga, Charles J.; Koppenaal, David W.; Hieftje, Gary M.

In: Analytical Chemistry, Vol. 76, No. 9, 01.05.2004, p. 2531-2536.

Research output: Contribution to journalArticle

Barnes IV, JH, Schilling, GD, Sperline, R, Denton, MB, Young, ET, Barinaga, CJ, Koppenaal, DW & Hieftje, GM 2004, 'Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph. 2. Use with an Inductively Coupled Plasma', Analytical Chemistry, vol. 76, no. 9, pp. 2531-2536. https://doi.org/10.1021/ac030337u
Barnes IV, James H. ; Schilling, Gregory D. ; Sperline, Roger ; Denton, M Bonner ; Young, Erick T. ; Barinaga, Charles J. ; Koppenaal, David W. ; Hieftje, Gary M. / Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph. 2. Use with an Inductively Coupled Plasma. In: Analytical Chemistry. 2004 ; Vol. 76, No. 9. pp. 2531-2536.
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