title: A new sorbent tube for atmospheric NOxdetermination by active sampling.
abstract: In this paper we used hydrated mayenite as reactive substrate for NOxactive sampling in the air, which is novel. The performance of the mayenite-based sorbent for the NOxtubes was evaluated in two different monitoring surveys (autumn 2015 and winter 2016), characterized by different environmental conditions. Sorbent tubes filled with mayenite were exposed simultaneously to triethanolamine (TEA)-based sorbent tubes and to a chemiluminescence detector, as reference. The comparison of the NOxconcentration levels measured by active sampling, using mayenite as NOxsorbent, showed a close relationship with the chemiluminescence analyzer. The effect of the environmental conditions on the performance of both mayenite and TEA-based sorbent tubes was evaluated and limitations connected to the use of TEA were discussed.
authors.affiliation: Dipartimento di Chimica e Biologia,Biologia, Università degli Studi di Salerno, via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Cucciniello
authors.affiliation: Dipartimento di Chimica e Biologia,Biologia, Università degli Studi di Salerno, via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy. Electronic address: aproto@unisa.it.
authors.forename: Antonio
authors.initials: A
authors.lastname: Proto
authors.affiliation: Dipartimento di Chimica e Biologia,Biologia, Università degli Studi di Salerno, via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy.
authors.forename: Rosa
authors.initials: R
authors.lastname: La Femina
authors.affiliation: Dipartimento di Chimica e Biologia,Biologia, Università degli Studi di Salerno, via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy.
authors.forename: Concetta
authors.initials: C
authors.lastname: Pironti
authors.affiliation: Dipartimento di Ingegneria Civile,Civile, Università degli Studi di Salerno, via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Farina
authors.affiliation: Dipartimento di Medicina Chirurgia e Odontoiatria "Scuola Medica Salernitana", Università degli Studi di Salerno, via Salvatore Allende, 84081 Baronissi, SA, Italy.
authors.forename: Oriana
authors.initials: O
authors.lastname: Motta
keywords: Active sampling; Chemiluminescence; Mayenite; NO(x); Triethanolamine