UV and IR absorption cross-sections of HCHO, HCDO, and DCDO.
UV (240-370 nm) and IR (3200-1500 cm(-1)) absorption cross-sections of HCHO, HCDO, and DCDO in a bath gas of N(2) at atmospheric pressure and 296 K are reported from simultaneous measurements in the two spectral regions. Cross-sections were placed on an absolute scale through quantitative conversion of formaldehyde to CO and HCOOH by titration with Br atoms, also monitored by FTIR. The integrated UV absorption cross-sections of HCHO, HCDO, and DCDO are equal to within the experimental uncertainty.
Gratien
Aline
A
Laboratoire Interuniversitaire des Systèmes Atmosphériques, UMR 7583, University of Paris 7 and Paris 12, Créteil, France.
Nilsson
Elna
E
Doussin
Jean-Francois
JF
Johnson
Matthew S
MS
Nielsen
Claus J
CJ
Stenstrøm
Yngve
Y
Picquet-Varrault
Bénédicte
B