Method and apparatus for gas sample analysis

Apparatus for withdrawing a gas from a source and conditioning the gas for subsequent analysis for total reduced sulfur content, which comprises:

• a gas probe having an inlet for a stream of gas and an outlet therefor,
• a conduit, having electrical resistance means to provide heat to a gas stream flowing therein, extending from the probe outlet to a condenser,
• said condenser having a passage through which a gas stream can flow and be cooled by indirect heat exchange with a cooling fluid and vapor in the gas condensed to liquid,
• a second conduit from the condensor passage to a means for producing a vacuum which causes a gas stream to enter the probe and flow through the heatable conduit to and through the condenser passage and the second conduit,
• a third conduit for delivering a stream of gas from the second conduit to a scrubber to wash the gas stream with a scrubbing liquid,
• means for removing the gas stream from the scrubber and separating entrained scrubbing liquid, and
• means for pumping the scrubbed gas stream, from which scrubbing liquid has been removed, to an analyzer and flow meter.