Monitoring of biogenic sulfide is important because acid volatile sulfides (AVS) represent a reactive pool responsible for immobilization of toxic metals. We propose a new sulfide paper sensor method for semiquantitative determination of AVS in which developed color is compared to a reference chart. The method was validated against the ion-selective microelectrode and the purge-and-trap methods. For fieldwork, readings should fall within 1 to 10 μmoles S2- . Considering that the volume of soil used ranged between 1 and 16 cm3 , the corresponding soil sulfides concentration range spans from 0.06 to 10 mmoles S2- cm-3 . The sulfide paper sensor method is highly suitable for field screening and has sensitivity levels comparable to laboratory methods. Environ Toxicol Chem 2018;37:3025-3031. © 2018 SETAC.
A new paper sensor method for field analysis of acid volatile sulfides in soils / Pellegrini, Elisa; Contin, Marco; Vittori Antisari, Livia; Vianello, Gilmo; Ferronato, Chiara; De Nobili, Maria. - In: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. - ISSN 0730-7268. - STAMPA. - 37:12(2018), pp. 3025-3031. [10.1002/etc.4279]
A new paper sensor method for field analysis of acid volatile sulfides in soils
Vittori Antisari, Livia;Vianello, Gilmo;Ferronato, Chiara;
2018
Abstract
Monitoring of biogenic sulfide is important because acid volatile sulfides (AVS) represent a reactive pool responsible for immobilization of toxic metals. We propose a new sulfide paper sensor method for semiquantitative determination of AVS in which developed color is compared to a reference chart. The method was validated against the ion-selective microelectrode and the purge-and-trap methods. For fieldwork, readings should fall within 1 to 10 μmoles S2- . Considering that the volume of soil used ranged between 1 and 16 cm3 , the corresponding soil sulfides concentration range spans from 0.06 to 10 mmoles S2- cm-3 . The sulfide paper sensor method is highly suitable for field screening and has sensitivity levels comparable to laboratory methods. Environ Toxicol Chem 2018;37:3025-3031. © 2018 SETAC.File | Dimensione | Formato | |
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