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A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters
The use of a glass fiber filter coated with polyethyleneimine (PcGF) for partitioning dissolved polycyclic aromatic hydrocarbons (PAHs) that are associated with humic substances (HSs) is reported. The PAHs pass through the PcGF, while HS-associated PAHs are trapped by electrostatic interaction betwe...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038087/ https://www.ncbi.nlm.nih.gov/pubmed/35478556 http://dx.doi.org/10.1039/d1ra04953d |
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author | Iwai, Hisanori Mundo, Rodrigo Nagao, Seiya |
author_facet | Iwai, Hisanori Mundo, Rodrigo Nagao, Seiya |
author_sort | Iwai, Hisanori |
collection | PubMed |
description | The use of a glass fiber filter coated with polyethyleneimine (PcGF) for partitioning dissolved polycyclic aromatic hydrocarbons (PAHs) that are associated with humic substances (HSs) is reported. The PAHs pass through the PcGF, while HS-associated PAHs are trapped by electrostatic interaction between the HSs and the PcGF. Based on this strategy, free- and associated-PAHs can be separated by simple filtration. Approximately 60–90% of the deuterated benzo[a]pyrene (BaP-d12) that was added to the sample solutions was in the associated form with soil type HAs, while the percentages were lower in the case of aquatic HA (ca. 25%) and FAs (ca. 10–15%). Strong correlations (R(2) = 0.84–0.90) were observed between the %-association for deuterated pyrene (Pyr-d10) or BaP and the degree of HS's aromaticity (log E(280)), regardless of the HS fractions or their origins. The separation technique was used to evaluate the association coefficient (log K(assoc)) and the capacity (C(assoc)) for soil type HAs based on a Langmuir adsorption model. The log K(assoc) values were not highly dependent on the origin of the HA (ca. 3.5–4.5). The BaP-d12 and Pyr-d10-C(assoc) values for the HA derived from compost were more than one order larger than the corresponding values for peat. The findings indicate that C(assoc) values vary with the origin of the HA and affect the environmental behavior of PAHs. The present study reports on the development of a simple partitioning technique that does not require any special training and equipment. |
format | Online Article Text |
id | pubmed-9038087 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90380872022-04-26 A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters Iwai, Hisanori Mundo, Rodrigo Nagao, Seiya RSC Adv Chemistry The use of a glass fiber filter coated with polyethyleneimine (PcGF) for partitioning dissolved polycyclic aromatic hydrocarbons (PAHs) that are associated with humic substances (HSs) is reported. The PAHs pass through the PcGF, while HS-associated PAHs are trapped by electrostatic interaction between the HSs and the PcGF. Based on this strategy, free- and associated-PAHs can be separated by simple filtration. Approximately 60–90% of the deuterated benzo[a]pyrene (BaP-d12) that was added to the sample solutions was in the associated form with soil type HAs, while the percentages were lower in the case of aquatic HA (ca. 25%) and FAs (ca. 10–15%). Strong correlations (R(2) = 0.84–0.90) were observed between the %-association for deuterated pyrene (Pyr-d10) or BaP and the degree of HS's aromaticity (log E(280)), regardless of the HS fractions or their origins. The separation technique was used to evaluate the association coefficient (log K(assoc)) and the capacity (C(assoc)) for soil type HAs based on a Langmuir adsorption model. The log K(assoc) values were not highly dependent on the origin of the HA (ca. 3.5–4.5). The BaP-d12 and Pyr-d10-C(assoc) values for the HA derived from compost were more than one order larger than the corresponding values for peat. The findings indicate that C(assoc) values vary with the origin of the HA and affect the environmental behavior of PAHs. The present study reports on the development of a simple partitioning technique that does not require any special training and equipment. The Royal Society of Chemistry 2021-08-25 /pmc/articles/PMC9038087/ /pubmed/35478556 http://dx.doi.org/10.1039/d1ra04953d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Iwai, Hisanori Mundo, Rodrigo Nagao, Seiya A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title | A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title_full | A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title_fullStr | A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title_full_unstemmed | A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title_short | A method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
title_sort | method for partitioning dissolved polycyclic aromatic hydrocarbons associated with humic substances using polyethylenimine-coated glass fiber filters |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038087/ https://www.ncbi.nlm.nih.gov/pubmed/35478556 http://dx.doi.org/10.1039/d1ra04953d |
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