Diffusive gradients in thin films (DGT) as a robust and reliable technique to measure bioavailable metals in digestates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F24%3A43927605" target="_blank" >RIV/60461373:22320/24:43927605 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2352186424000026" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352186424000026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.eti.2024.103526" target="_blank" >10.1016/j.eti.2024.103526</a>
Alternative languages
Result language
angličtina
Original language name
Diffusive gradients in thin films (DGT) as a robust and reliable technique to measure bioavailable metals in digestates
Original language description
Applying diffusive gradients in thin films (DGT) to digestates as a standardised method requires addressing some key challenges, which include unclear method precision, and qualitative and quantitative information on compounds in digestates responsiblefor metal binding. Here, we tested method precision on seven different digestates by measuring Co, Ni, Fe and Mn accumulated in the DGT devices. Apart from determining precision of the DGT measurements, we assessed the method of using gels with twodifferent pore sizes in parallel (restricted gel with smaller and open gel with bigger pore size) to identify organic complexes that bind trace metals. Finally, we tried to understand how the feedstock affects DGT concentrations. The method precision wassatisfactory: the RSD of the DGT technical triplicates for Co were smaller than 10% for all seven digestates. Mn RSD varied more than 10% in only one digestate sample (27% RSD), Ni RSD in two samples (19% twice) and Fe RSD in three (with 18%maximum RSD). The measurements of Co, Ni and Fe in the restricted gel compared to the open gel showed a statistically significant difference in maximum three out of seven samples. Looking at the relation of feedstock and the DGT concentrations of metals, our results showed that the investigated metals were found in higher DGT concentrations in digestates originating from manure, energy crops and food waste than in samples originating from wastewater treatment plants. In conclusion, open DGTappear to be applicable for Co, Ni, Fe and Mn bioavailability measurements for different feedstock.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20801 - Environmental biotechnology
Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Technology & Innovation
ISSN
2352-1864
e-ISSN
2352-1864
Volume of the periodical
2024
Issue of the periodical within the volume
3 January
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
103526
UT code for WoS article
001164992600001
EID of the result in the Scopus database
2-s2.0-85182595323