A novel device for capturing breath samples for solvent analysis
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Thermal desorption gas chromatography
2021, Gas ChromatographyCapturing and storing exhaled breath for offline analysis
2018, Breath AnalysisUse of exhaled air as an improved biomonitoring method to assess perchloroethylene short-term exposure
2017, Environmental ResearchCitation Excerpt :In humans, about 2.0% of the PERC volume absorbed is metabolized, the remainder being eliminated unchanged in exhaled air (Prado et al., 2003). Analysis of exhaled air shows almost instantaneous equilibrium between PERC in pulmonary blood and lung air, therefore, this information describes a good indicator of PERC levels in the bloodstream (Dyne et al., 1997). The determination of PERC in exhaled air of workers presents numerous advantages over other methods; the most important is that it is not an invasive method, willingly agreed to subjects and can be used in large population surveys (Dallas et al., 1994).
Breath analysis: Technical developments and challenges in the monitoring of human exposure to volatile organic compounds
2015, Journal of Chromatography B: Analytical Technologies in the Biomedical and Life SciencesCitation Excerpt :An alveolar sample was obtained using the dead-space volume expelled before the valve was opened. In 1997, a novel device (Fig. 4) was proposed to capture breath samples for solvent analysis by Dyne et al. [68]. This simple, portable, and robust method was based on a variation of the Haldane-Priestly tube principle.
A rapid method for the chromatographic analysis of volatile organic compounds in exhaled breath of tobacco cigarette and electronic cigarette smokers
2015, Journal of Chromatography ACitation Excerpt :The highest limits, e.g. toluene (0.65 ng), were due to background atmospheric levels by use of this compound in nearby labs. Repeatability (residual standard deviation of ten measurements) ranged between 5.9 and 23% which is consistent with previous measurements with Bio-VOCs in other studies [11]. Recoveries of standards introduced into the Bio-VOCs and analyzed as described in the experimental section ranged between 92 and 114% (Table 2).
Potential Applications of Volatile Organic Compounds in Safety and Security
2013, Volatile Biomarkers