Buck's Ten Position Purge & Trap Autosampler is an economical way to automate Method 5030 Purge & Trap analyses. Ten individual test tubes are mounted on a central valve oven, which is heated to 150oC. This arrangement allows the tubing connections between the valve and the test tubes to be easily inspected and serviced if necessary. Under control of the PeakSimple data system, the stream selector valve sequentially or selectively steps to one of the ten test tubes for purging. The same hardware without the test tubes is used as a stream selector for multi-location gas analyses or automatic calibration sequences.