Analysis of SO2 Concentration in Air By Microwave Spectroscopy

A. R. Brenner, S. G. Kukolich

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Low concentrations of SO2 in air were measured using a Stark modulated microwave spectrometer. Measurement of the intensity of absorption lines for rotational transitions gives a quantitative measure of the concentration of specific small molecules. Concentrations of 20 ppm of SO2 in air were easily detected with a signal-to-noise ratio of over 20/1 with a 5 sec time constant using a straightforward sample concentration technique.

Original languageEnglish (US)
Pages (from-to)691-697
Number of pages7
JournalAnalytical Letters
Issue number8
StatePublished - Aug 1 1973


  • microwave spectroscopy
  • pollution
  • sulphur dioxide

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy
  • Clinical Biochemistry
  • Biochemistry, medical
  • Electrochemistry


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