5 that consisted of the following parts: absorption cell
of 1 m length and of 1 [dm.
The arsine gas (from sodium borohydride and acid) so produced were then carried into a separator, in which the gas phase was separated from the liquid phase and was passed on to the absorption cell
by argon gas, while the liquid phase was drained off.
The spectrum of the absorption cell
is measured synchronously at exactly the same time instances as the output of the Mach-Zehnder interferometer.
The unit is a single-mode optical-fiber-coupled absorption cell
containing carbon monoxide [[blank].