4Hanst P, L. Pollution: Trace gas analysis ,in Fourier Transform Infrared Spectroscopy Application to Chemical systems[J]. New York: AcademicPress. 1979,2: 79.
5Herffet W. F. Appl. Opt[J]. 1982,21:635.
6Herget W. F. and Brasher J. D. Appl. Opt[J].1979,18:3404.
7Herget W. F. Am. Lab[J]. 1982,14-72.
8Herget W. F. and Brasher J. D. Appl. Opt[J].1980,19: 508.