Comparative study of the adsorption performance of an active multi-sorbent bed tube (Carbotrap, Carbopack X, Carboxen 569) and a Radiello® diffusive sampler for the analysis of VOCs

Measurement of benzene concentration in urban air using passive sampling

“…The correction for temperature performed for Q T each month does not fully reflect the monthly fluctuation in temperature and thus the fluctuation in Q T . This confirms that applying the average temperature to calculate Q T may lead to significant inaccuracy [28,[30][31][32][33][34][35].…”

“…The results obtained under steady conditions, close to the standard conditions (25°C and 1013 hPa), did not differ significantly from the values provided by the manufacturer [26][27][28]. A different situation occurred when the values were obtained under ambient conditions.…”

“…However, the seasonal profiles obtained for both techniques were similar. Good agreement between the results obtained with both of these techniques (active online monitoring and passive sampling), in terms of monitoring VOCs, has been found in several studies [27,28]. However, due to the fact that meteorological conditions (e. g., temperature, wind, and humidity) can affect the behavior of passive samplers, the performance of this sampling technique should be investigated continuously (especially under real conditions) and compared to other methods.…”

Season-Long Volatile Emissions from Peach and Pear Trees In Situ, Overlapping Profiles, and Olfactory Attraction of an Oligophagous Fruit Moth in the Laboratory

“…To collect volatiles, a radial diffusive sampling system (Radiello model 120-2, Supelco, Buchs, Switzerland) was used. This system has low detection limits (Vallat and Dorn 2005), provides results that are as accurate as active sampling (Gallego et al 2011), allows for efficient volatile collection without the need of heavy and encumbering pumping systems (Thammakhet et al 2006), and minimizes plant manipulation and possible mechanical damage. Prior to sampling, sorbent cartridges (diam: 4.8 mm; length: 60 mm) containing Tenax TA (250± 10 mg; particle size 20-35) were conditioned at 300°C with a helium 5.0 (purity 99.99 %) flow of 60 mlmin −1 for 7 h.…”

Generation of sub-ppb level vapor phase mixtures of biogenic volatile organic compounds from liquid phase standards and stepwise characterization of their volatilization properties by thermal desorption–gas chromatography–mass spectrometry

“…The detailed procedure for preparing these STs is reported and presented in our recent study [18]. Note that the reliability of multiple-bed STs for the collection of volatiles has also been validated in a number of recent studies [5,9,[20][21][22][23].…”