High-precision CO2 and δ13CO2 analysis

  • Xiang Xian Li
  • , Liang Xu*
  • , Min Guang Gao
  • , Jing Jing Tong
  • , Ling Jin
  • , Sheng Li
  • , Xiu Li Wei
  • , Ming Chun Feng
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An instrument based on Fourier transform infrared spectrometer is developed, which is capable of simultaneously measuring carbon dioxide (CO2) andδ13CO2 in a single air sample with higher precision. The temperature and pressure effect on the values of CO2 and δ13CO2 are investigated. Both the standard gas and air sample gas are continuously measured using this method. Precision and accuracy are improved by comparing with the measurements of standard gas after correction using the law of temperature and pressure effect on the values of CO2 and δ13CO2.

Original languageEnglish
Article number180203
JournalWuli Xuebao/Acta Physica Sinica
Volume62
Issue number18
DOIs
Publication statusPublished - 20 Sept 2013
Externally publishedYes

Keywords

  • Carbon dioxide
  • Fourier transform infrared spectroscopy
  • Isotope ratio
  • Spectroscopy

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