The TDLAS instrument for the detection of total inorganic chlorine in the stratosphere | Zendy

Johnson T. J. | Zendy; Harris G. W. | Zendy; Bonifer J. | Zendy; Crowley J. N. | Zendy; Zenker T. | Zendy; Fischer H. | Zendy

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The TDLAS instrument for the detection of total inorganic chlorine in the stratosphere

Author(s) -

Johnson T. J.,

Harris G. W.,

Bonifer J.,

Crowley J. N.,

Zenker T.,

Fischer H.

Publication year - 1996

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/96gl03336

Subject(s) - chlorine , stratosphere , analytical chemistry (journal) , tunable diode laser absorption spectroscopy , absorption spectroscopy , spectroscopy , ozone , thermal decomposition , decomposition , absorption (acoustics) , chemistry , laser , photochemistry , materials science , tunable laser , optics , environmental chemistry , meteorology , physics , organic chemistry , quantum mechanics , composite material

A novel method based on tunable diode laser absorption spectroscopy is proposed for the detection of the sum of the stratospheric chlorine components HCl, ClONO 2 , ClOOCl and ClO. All of the above species are detected as HCl following thermal decomposition (ClONO 2 and ClOOCl) to ClO which is converted to Cl via reaction with NO; the Cl atom is then rapidly reacted with a hydrocarbon to form HCl. The method has been investigated in the laboratory for detection of ClONO 2 , for which the conversion efficiency was found to be 100% under suitable conditions.

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