What is Radiello Working News Bibliography Search About us Contacts IT Ambient volatile organic compounds monitoring by diffusive sampling. Compatibility of high uptake rate samplers with thermal desorption 15 November 2019 Bates, M., Gonzalez-Flesca, N., Cocheo, V., Sokhi, R. Analyst, 1997, 122, 1481-1484 Field and laboratory validation studies were carried out on a novel, high uptake rate, radial diffusive sampler loaded with Carbotrap, a thermally desorbable adsorbent. For field experiments parallel techniques were employed for comparison. The goal was to assess the compatibility of the device for subsequent thermal desorption and preconcentration of the sample for analysis. Some unexpected results were obtained especially for benzene, where it was observed that, under certain conditions the longer the device was exposed to an atmosphere, the less sample was collected. A possible explanation for these results is put forward by applying knowledge previously acquired on saturation and competitivity effects. An alteration to the sampler geometry is proposed which, through further laboratory and field work, is shown to overcome this problem. Useful links F.A.Q. Service / Lab Documentations Certificates ICS Maugeri SpA SB è certificata secondo la UNI EN ISO 9001:2015 da Bureau Veritas Italia SpA Registered office: Via Salvatore Maugeri, 4 - 27100 - Pavia - C.F. e P.IVA 02631650187 - cod. univoco fatt. elettronica: MZO2A0U