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A new paper sensor method for field analysis of acid volatile sulfides in soils.
- Source :
-
Environmental toxicology and chemistry [Environ Toxicol Chem] 2018 Dec; Vol. 37 (12), pp. 3025-3031. Date of Electronic Publication: 2018 Nov 15. - Publication Year :
- 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 S <superscript>2-</superscript> . Considering that the volume of soil used ranged between 1 and 16 cm <superscript>3</superscript> , the corresponding soil sulfides concentration range spans from 0.06 to 10 mmoles S <superscript>2-</superscript> cm <superscript>-3</superscript> . 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.<br /> (© 2018 SETAC.)
Details
- Language :
- English
- ISSN :
- 1552-8618
- Volume :
- 37
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Environmental toxicology and chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 30259571
- Full Text :
- https://doi.org/10.1002/etc.4279