Další formáty:
BibTeX
LaTeX
RIS
@article{1419098, author = {Škulcová, Lucia and BrandstätterandScherr, Kerstin and Chrást, Lukáš and Hofman, Jakub and Bielská, Lucie}, article_location = {San Diego (CA) USA}, article_number = {July}, doi = {http://dx.doi.org/10.1016/j.ecoenv.2018.02.061}, keywords = {Sorption; Soil sterilization; gamma-irradiation; Soil spiking; DDE; SFE; XAD; SPME}, language = {eng}, issn = {0147-6513}, journal = {Ecotoxicology and Environmental Safety}, title = {Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry}, url = {https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub}, volume = {155}, year = {2018} }
TY - JOUR ID - 1419098 AU - Škulcová, Lucia - Brandstätter-Scherr, Kerstin - Chrást, Lukáš - Hofman, Jakub - Bielská, Lucie PY - 2018 TI - Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry JF - Ecotoxicology and Environmental Safety VL - 155 IS - July SP - 125-132 EP - 125-132 PB - ACADEMIC PRESS INC ELSEVIER SCIENCE SN - 01476513 KW - Sorption KW - Soil sterilization KW - gamma-irradiation KW - Soil spiking KW - DDE KW - SFE KW - XAD KW - SPME UR - https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub L2 - https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub N2 - The fate of organic chemicals and their metabolites in soils is often investigated in model matrices having undergone various pre-treatment steps that may qualitatively or quantitatively interfere with the results. Presently, effects associated with soil sterilization by gamma-irradiation and soil spiking using an organic solvent were studied in one freshly spiked soil (sterilization prior to contamination) and its field-contaminated (sterilization after contamination) counterpart for the model organic compound 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene (p,p'-DDE). Changes in the sorption and potential bioavailability of spiked and native p,p'-DDE were measured by supercritical fluid extraction (SFE), XAD-assisted extraction (XAD), and solid-phase microextraction (SPME) and linked to qualitative changes in soil organic matter (SOM) chemistry measured by diffuse reflectance infrared Fourier-transform (DRIFT) spectroscopy. Reduced sorption of p,p'-DDE detected with XAD and SPME was associated more dearly with spiking than with sterilization, but SFE showed a negligible impact. Spiking resulted in an increase of the DRIFT-derived hydrophobicity index, but irradiation did not. Spectral peak height ratio descriptors indicated increasing hydrophobicity and hydrophilicity in pristine soil following sterilization, and a greater reduction of hydrophobic over hydrophilic groups as a consequence of spiking. In parallel, reduced sorption of p,p'-DDE upon spiking was observed. Based on the present samples, gamma-irradiation appears to alter soil sorptive properties to a lesser extent when compared to common laboratory processes such as spiking with organic solvents. ER -
ŠKULCOVÁ, Lucia, Kerstin BRANDSTÄTTER-SCHERR, Lukáš CHRÁST, Jakub HOFMAN a Lucie BIELSKÁ. Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry. \textit{Ecotoxicology and Environmental Safety}. San Diego (CA) USA: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2018, roč.~155, July, s.~125-132. ISSN~0147-6513. Dostupné z: https://dx.doi.org/10.1016/j.ecoenv.2018.02.061.
|