Microscale Investigation into Selenium Distribution and Speciation in Se-Rich Soils from Enshi, China.
Bull Environ Contam Toxicol
; 106(1): 40-43, 2021 Jan.
Article
en En
| MEDLINE
| ID: mdl-33452893
ABSTRACT
In this study, we investigated the distribution and chemical speciation of Se in Se-rich soil by using micro-focused X-ray absorption near-edge structure (µ-XANES) spectroscopy coupling with X-ray fluorescence (µ-XRF) mapping. The microscale distribution showed that Se is heterogeneously distributed in the soil from seleniferous areas in Enshi, China. Se K-edge µ-XANES analysis suggested that Se is mainly present as Se(IV), organic Se(-II) or Se(0) species in Se-rich agricultural soil. The findings from this study would help improve the understanding of the fate, mobility, bioavailability, and biogeochemical cycling of Se in the seleniferous soil environment.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Selenio
/
Contaminantes del Suelo
País/Región como asunto:
Asia
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Año:
2021
Tipo del documento:
Article
País de afiliación:
China