X-ray photoelectron spectrometric and x-ray fluorometric studies of sulphur compounds on the surface of copper plates exposed to the atmosphere.
X-Ray photoelectron spectroscopy (XPS) and XRF as techniques for monitoring air pollution are compared. Sulphide and oxides of sulphur (SO(2), SO(3) and SO(2-)(4)) have been determined on copper plates exposed for different lengths of time to an atmosphere containing hydrogen sulphide. The total amount of sulphur increases with the time of exposure but the sulphide reaches a constant value after 59 days. An interpretation of the mechanism of oxidation of hydrogen sulphide is offered.
Murata
K
K
Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, Osaka, Japan.
Ikeda
S
S
Utsunomiya
T
T
Yasui
A
A