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1996
DOI: 10.1202/0002-8894(1996)057<0897:hurrds>2.0.co;2
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High Uptake Rate Radial Diffusive Sampler Suitable for Both Solvent and Thermal Desorption

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Cited by 30 publications
(40 citation statements)
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“…To quantify the samples, a calibration curve was prepared injecting 1 μl of a standard solution into a tube; the spiked adsorbent tubes were then thermally desorbed in the same conditions of time, gas flow, and split ratio of the samples. shows the possibility of calculating the real concentration of compounds, C [μg/m 3 ] in atmosphere by GC quantification of analytes mass, m (Cocheo et al., 1996; Bates et al., 1997) where m (μg) is the amount of analytes adsorbed on the cartridge, Q (ml/min) is the uptake rate at 298 K, and t (min) is the sampling period.…”
Section: Methodsmentioning
confidence: 99%
“…To quantify the samples, a calibration curve was prepared injecting 1 μl of a standard solution into a tube; the spiked adsorbent tubes were then thermally desorbed in the same conditions of time, gas flow, and split ratio of the samples. shows the possibility of calculating the real concentration of compounds, C [μg/m 3 ] in atmosphere by GC quantification of analytes mass, m (Cocheo et al., 1996; Bates et al., 1997) where m (μg) is the amount of analytes adsorbed on the cartridge, Q (ml/min) is the uptake rate at 298 K, and t (min) is the sampling period.…”
Section: Methodsmentioning
confidence: 99%
“…The dependence of uptake rate with wind velocity could be satisfactorily modelled by equations derived from fluid mechanics for the passive samplers having an axial diffusion path as in the Palmes tubes and badges [24,25]. On the other hand, only empiric equations that correlate the sampling rate with wind velocity are given in the literature [16,17] concerning the radial diffusion sampler recently developed by Cocheo et al [11].…”
Section: Introductionmentioning
confidence: 99%
“…In the last thirty years, efforts have been undertaken to improve the accuracy of measurements by these passive sampling methods. The main improvements were made in the means of sampling with the use of more efficient trapping media [10] and the development of new designs intended for limiting the influence of environmental factors on passive sampling [11,12]. The current way is to equip the diffusive sampler with a porous membrane in order to isolate the molecular diffusion path from air movements.…”
Section: Introductionmentioning
confidence: 99%
“…Le concept de type tube été amélioré récemment en pratiquant un échantillonnage radial (Fig. 3) qui accroît, de plus d'un facteur 100, la quantité de polluant collectée par unité de temps [15].…”
Section: Avec Concentrationunclassified
“…Par analyse chromatographique en phase gazeuse couplée à la détection par ionisation de flamme ou spectrométrie de masse, il est possible d'atteindre des seuils de détection de l'ordre de 1 µg m −3 pour 24 heures d'exposition avec des tubes traditionnels. Sur la base d'un échantillonnage radial, des travaux récents [15] montrent qu'il est possible de réduire considérablement la durée d'exposition.…”
Section: ) Covunclassified