The CDS-7400 soil/water purge and trap
autosampler offers enhanced reproducibility and compatibility with a variety of purge and trap
While still discussing classical static headspace sampling, they have now enlarged the text to cover new techniques and systems, the most important of which are solid-phase microextraction and improved techniques of "purge and trap
" dynamic headspace sampling.
Most recently, Teledyne Tekmar, which is the leader in purge and trap
, introduced the HT3 to better target the headspace segment, an area in which it is not particularly strong.
Tekmar-Dohrmann offers a comprehensive product line of sample preparation and analysis technologies, including: Purge and Trap
, Headspace, Air Analysis, and Total Organic Carbon systems.
The purge and trap
operating conditions are shown in Table 1.
The analysis for volatile compounds used a purge and trap
method for sample concentration.
Since the purge and trap
cycle time was 16.5 minutes, we tested other conditions to see if adequate resolution could be maintained using a faster instrument cycle.
The environmental connection is important, but so is the fact that the principal business is purge and trap
, a very stable sample introduction market.
The entire aliquot is transferred to the purge and trap
for compound concentration and subsequent separation and detection using a GC/GC-MS quantification system.
Both OI Analytical and TekmarDohrmann, leaders in purge and trap
, introduced brand new purge and trap
systems at Pittcon.