Hydrogen Sulfide and Carbon Disulfide in Air
The Series 8900 Hydrogen Sulfide and
Carbon Disulfide Analyzer provides
direct measurement of H2S and CS2
in ambient air. This instrument is
utilized for continuous emission
monitoring.
The Series 8900 H2S and CS2 Analyzer
employs a Photoionization detector
(PID) as the sensing element. A
dual column configuration with
timed backflush to vent is used
to strip off moisture and heavier
hydrocarbons. A pre-cut column
is used in series with the analytical
column. At sample injection a fixed
volume of sample is carried to the
pre-cut column. Backflush is timed
so that only the H2S, CS2, and other
similar components are eluted to the
analytical column. Contaminants on
the pre-cut column are backflushed to
vent. H2S and CS2 are separated from
potentially interfering components
on the analytical column and elute to
the detector for analysis.