[1] CAI X Sh,LI Sh R,FU J Y,et al.Study on measuring concentration of NO2 with DOAS method[J].Journal of Engineering Thermophysics,2003,24(2):351-353(in Chinese).
[2] WANG D D,ZHU B,WANG J.Observational analysis of O3,SO2,and NO2,with DOAS system[J].Research of Environmental Sciences,2009,22(6):650-655(in Chinese).
[3] RAO G N,KARPF A.High sensitivity detection of NO2 employing cavity ringdown spectroscopy and an external cavity continuously tunable quantum cascade laser[J].Applied Optics,2010,49(26):4906-4914.
[4] KARPF A,RAO G N.Enhanced sensitivity for the detection of trace gases using multiple line integrated absorption spectroscopy[J].Applied Optics,2009,48(27):5061-5066.
[5] ZHENG L J,LI P,QIN R F,et al.Research situation and developing tendency for optical measurement technology of gas density[J].Laser and Optoelectronics Progress,2008(8):24-30(in Chinese).
[6] CHEN H,ZHOU F X,XU Zh,et al.An integrated control system for carbon monoxide detection,emission and recycling[J].Laser Technology,2011,35(3):360-363(in Chinese).
[7] SUN X P,ZHANG X H,WANG D Ch,et al.LED illuminant-based detection of trace NO2 gases[J].Spectroscopy and Spectral Analysis,2009,29(6):1672-1674(in Chinese).
[8] ZHANG G Y,MA J Y,JIN Y D.Investigation on internal energy transfei and relaxation kinetics of NO2 by photoacoustic and fluorescence emission spectra[J].Spectroscopy and Spectral Analysis,2011,31(3):742-745(in Chinese).