Compact PTR Application Note - Field Portable VOC measurements
The field portability of our instrumentation was a key factor in the design and development of the Compact PTR-MS. In addition to the increased sensitivity (>200cps/ppb benzene) and high mass resolution (>3000 m/dm) from our previous PTR models, the size, weight and power consumption have been reduced to allow easy transport and operation in a small van. The Kore Technology Compact PTR-MS and field measurement kit allow for easy loading into a van, quick start (2 minutes to data measurement) and stop procedure for rapid measurements at multiple locations in a few hours.
As part of our extensive prototype testing, we took a Kore Technology compact PTR-MS instrument to several measurement sites across Cambridgeshire, UK.
At the roadside measurement site, we observed real-time VOCs signals from traffic related emissions. As an example, toluene is plotted as a VOC marker for the vehicles driving past the van measurement site. There were three main intervals of cars and trucks passing the van measurement site in the 5-minute measurement with an increase in toluene observed. There were also intervals of several minutes where no vehicles passed the van and the toluene signal reduces to background levels.
At a second measurement site near to a large landfill and waste recycling centre, low levels of a common plasticiser, Di-IsoButyl Phthalate (DIBP) in the ambient air at ~400ppt were able to be quantified against a rural air background measurement site.
Last updated: 11:16 10/05/2019
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