Interfacing an automatic elemental analyser with an isotope ratio mass spectrometer: The potential for fully automated total nitrogen and nitrogen-15 analysis

Thomas Preston, Nicholas J.P. Owens

Research output: Contribution to journalArticlepeer-review

Abstract

An interface between an automatic nitrogen analyser and an isotope mass spectrometer is described. The interface enables total nitrogen analyses and nitrogen isotope ratio measurements to be made semi-automatically, at the rate of 12 h-1. The precision of the measurements was at the detection limit of the mass spectrometer (0.00026 atom-% 15N; ±0.7‰). No significant cross-contamination between samples was observed (<0.02% carry over). The potential for full automation and extension of the interface for other stable isotope measurements is discussed.

Original languageEnglish
Pages (from-to)971-977
Number of pages7
JournalThe Analyst
Volume108
Issue number1289
DOIs
Publication statusPublished - 1983

Keywords

  • Automatic nitrogen analysis
  • Elemental gas chromatograph - mass spectrometer interface
  • Nitrogen-15 isotope mass spectrometry

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