title: [Concentration calibration method of ambient trace-gas monitoring with tunable diode laser absorption spectroscopy].
abstract: Tunable diode laser absorption spectroscopy (TDLAS) is a new method to detect trace-gas qualitatively or quantificationally based on the scan characteristic of the diode laser used to obtain the absorption spectroscopy in the characteristic absorption region It needs to be combined with a long absorption path in the ambient trace-gas measurements. TDLAS is a new trace gas detective method developed with the combination of a tunable diode laser source and a long absorption path; it has significant advantages not only in the sensitivity but also in rapidity of response. It has been widely used in many atmospheric trace-gases detection, ground trace-gas detection and, gas leakage detection. On-line calibrating is necessary to most trace gas monitor, and in the present paper the authors introduced a simple and accurate method, analyzed it in the theory, and proved it's feasibility in the experiment.
authors.affiliation: Key Laboratoy of Environmeental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
authors.forename: Rui-feng
authors.initials: RF
authors.lastname: Kan
authors.forename: Wen-qing
authors.initials: WQ
authors.lastname: Liu
authors.forename: Yu-jun
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Jian-guo
authors.initials: JG
authors.lastname: Liu
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.forename: Shan-hu
authors.initials: SH
authors.lastname: Gao
authors.forename: Jun
authors.initials: J
authors.lastname: Chen