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Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry

Laser diffraction spectrometry allows for efficiently obtaining high-resolution grain size data. However, pretreatment and dispersion of aggregates in sediment samples are essential pre-requisites for acquiring accurate results using this method. This study evaluates the effectiveness of five disper...

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Autores principales: Abdulkarim, Mubarak, Grema, Haruna M., Adamu, Ibrahim H., Mueller, Daniela, Schulz, Melanie, Ulbrich, Marius, Miocic, Johannes M., Preusser, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8293417/
https://www.ncbi.nlm.nih.gov/pubmed/34209527
http://dx.doi.org/10.3390/mps4030044
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author Abdulkarim, Mubarak
Grema, Haruna M.
Adamu, Ibrahim H.
Mueller, Daniela
Schulz, Melanie
Ulbrich, Marius
Miocic, Johannes M.
Preusser, Frank
author_facet Abdulkarim, Mubarak
Grema, Haruna M.
Adamu, Ibrahim H.
Mueller, Daniela
Schulz, Melanie
Ulbrich, Marius
Miocic, Johannes M.
Preusser, Frank
author_sort Abdulkarim, Mubarak
collection PubMed
description Laser diffraction spectrometry allows for efficiently obtaining high-resolution grain size data. However, pretreatment and dispersion of aggregates in sediment samples are essential pre-requisites for acquiring accurate results using this method. This study evaluates the effectiveness of five dispersing agents in deflocculating the investigated fluvial sediments and the resulting grain size distribution obtained by laser diffraction spectrometry. We also examine the ability of the different dispersing agents to deflocculate sediment samples treated by thermal combustion. Distilled water presented a low efficiency in deflocculating the samples and yielded a near-zero clay content for samples with an expected clay content. The other chemical dispersants were effective in dispersing aggregates and yielding clay, albeit with different efficiencies. Calgon had the highest dispersing ability, followed closely by sodium tripolyphosphate. The performance of chemical treatment with sodium oxalate approaches that of sodium tripolyphosphate. However, it leads to the formation of precipitates in the samples, obscuring the actual grain size data. Sodium pyrophosphate derived the least amount of deflocculation among the four chemical dispersants. Furthermore, all the chemical dispersants were found to be ineffective in dispersing aggregates in samples treated by thermal combustion.
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spelling pubmed-82934172021-07-22 Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry Abdulkarim, Mubarak Grema, Haruna M. Adamu, Ibrahim H. Mueller, Daniela Schulz, Melanie Ulbrich, Marius Miocic, Johannes M. Preusser, Frank Methods Protoc Article Laser diffraction spectrometry allows for efficiently obtaining high-resolution grain size data. However, pretreatment and dispersion of aggregates in sediment samples are essential pre-requisites for acquiring accurate results using this method. This study evaluates the effectiveness of five dispersing agents in deflocculating the investigated fluvial sediments and the resulting grain size distribution obtained by laser diffraction spectrometry. We also examine the ability of the different dispersing agents to deflocculate sediment samples treated by thermal combustion. Distilled water presented a low efficiency in deflocculating the samples and yielded a near-zero clay content for samples with an expected clay content. The other chemical dispersants were effective in dispersing aggregates and yielding clay, albeit with different efficiencies. Calgon had the highest dispersing ability, followed closely by sodium tripolyphosphate. The performance of chemical treatment with sodium oxalate approaches that of sodium tripolyphosphate. However, it leads to the formation of precipitates in the samples, obscuring the actual grain size data. Sodium pyrophosphate derived the least amount of deflocculation among the four chemical dispersants. Furthermore, all the chemical dispersants were found to be ineffective in dispersing aggregates in samples treated by thermal combustion. MDPI 2021-06-29 /pmc/articles/PMC8293417/ /pubmed/34209527 http://dx.doi.org/10.3390/mps4030044 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Abdulkarim, Mubarak
Grema, Haruna M.
Adamu, Ibrahim H.
Mueller, Daniela
Schulz, Melanie
Ulbrich, Marius
Miocic, Johannes M.
Preusser, Frank
Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title_full Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title_fullStr Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title_full_unstemmed Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title_short Effect of Using Different Chemical Dispersing Agents in Grain Size Analyses of Fluvial Sediments via Laser Diffraction Spectrometry
title_sort effect of using different chemical dispersing agents in grain size analyses of fluvial sediments via laser diffraction spectrometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8293417/
https://www.ncbi.nlm.nih.gov/pubmed/34209527
http://dx.doi.org/10.3390/mps4030044
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