Characterization of standardized breath sampling for off-line field use
Due to several sources of potential variability associated with exhaled breath bag sampling
procedures for off-line analysis, the Respiration Collector for in vitro Analysis (ReCIVA) sampler
was developed. Although designed to improve upon several pitfalls of sampling with exhaled breath
bags, the ReCIVA remains a minimally studied research tool. In this manuscript, several attributes
of the ReCIVA sampler are investigated among three individual tests, such as background
contamination, control software version, performance of different adsorbent tubes, duplicate sample
production, and comparison to exhaled breath bags. The data shows greater than a 58% reduction in
background siloxanes can be achieved with submersion of ReCIVA masks in ethyl alcohol or baking the
masks at a high temperature (200 °C). The results illustrate the ReCIVA control software version
plays a key role in the flow rates applied to thermal desorption (TD) tubes. Using exhaled isoprene
as a representa...
Source: Journal of Breath Research - Category: Respiratory Medicine Authors: Sean W Harshman, Rhonda L Pitsch, Christina N Davidson, Alexander M Scott, Elizabeth M Hill, Zachary K Smith, Kraig E Strayer, Nicole M Schaeublin, Taylor L Wiens, Michael C Brothers, Grant M Slusher, Megan L Steele, Brian A Geier, Maomian Fan, Leslie A D Source Type: research