7. Apparatus
7.1 Pyrolysis Furnace, which can maintain a temperature
sufficient to pyrolyze the organic matrix and convert all
chlorine present in the sample to hydrogen chloride.
7.2 Pyrolysis Tube, made of quartz and constructed so that
when a sample is volatilized in the front of the furnace, it is
swept into the pyrolysis zone by an inert gas, where it
combusts when in the presence of oxygen. The inlet end of the
tube must have a sample inlet port with a septum through
which the sample can be injected by syringe. The inlet end
must also have side arms for the introduction of oxygen and
inert carrier gas. The pyrolysis tube must be of ample volume,
so that complete pyrolysis of the sample is ensured.