Diffusion coefficients of polar organic compounds in agarose
hydrogel and water and their use for estimating uptake in
passive samplers

J 2020

Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers

URÍK, Jakub; Albrecht PASCHKE and Branislav VRANA

Basic information

Original name

Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers

Authors

URÍK, Jakub; Albrecht PASCHKE and Branislav VRANA

Edition

Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2020, 0045-6535

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 7.086

RIV identification code

RIV/00216224:14310/20:00116068

Organization unit

Faculty of Science

DOI

https://doi.org/10.1016/j.chemosphere.2020.126183

UT WoS

000527935600080

EID Scopus

2-s2.0-85079668225

Keywords in English

Diffusion coefficient; Passive sampling; DGT; Polar organic compounds; Agarose hydrogel; Taylor dispersion

Abstract

In the original language

Diffusion coefficient (D) is an important parameter for prediction of micropollutant uptake kinetics in passive samplers. Passive samplers are nowadays commonly used for monitoring trace organic pollutants in different environmental matrices. Samplers utilising a hydrogel layer to control compound diffusion are gaining popularity. In this work we investigated diffusion of several perfluoroalkyl substances, currently used pesticides, pharmaceuticals and personal care products in 1.5% agarose hydrogel by measuring diffusion coefficients using two methods: a diffusion cell and a sheet stacking technique. Further, diffusion coefficients in water were measured using Taylor dispersion method. The sheet stacking method was used to measure D at 5, 12, 24, and 33 degrees C in order to investigate temperature effect on diffusion. Median D values ranged from 2.0 to 8.6 x 10(-6) cm(2) s(-1) and from 2.1 to 8.5 x 10(-6) cm(2) s(-1) for the diffusion cell and sheet stack methods respectively. For most compounds, the variability between replicates was higher than the difference between values obtained by the two methods. Rising temperature from 10 to 20 degrees C increases the diffusion rate by the factor of 1.41 +/- 0.10 in average. In water, average D values ranged from 3.03 to 10.0 x 10(-6) cm(2) s(-1) and were comparable to values in hydrogel, but some compounds including perfluoroalkyl substances with a long aliphatic chain could not be evaluated properly due to sorptive interactions with capillary walls in the Taylor dispersion method. Sampling rates estimated using the measured D values were systematically higher than values estimated from laboratory sampler calibration in our previously published study, by the factor of 2.2 +/- 1.0 in average.

Links

EF16_013/0001761, research and development project

Name: RECETOX RI

7AMB16DE004, research and development project

Name: Vývoj a validace pasivních vzorkovacích zařízení pro monitorování emergentních organických znečišťujících látek vodního prostředí (Acronym: PASCAL)

Investor: Ministry of Education, Youth and Sports of the CR

90121, large research infrastructures

Name: RECETOX RI

Cite

URÍK, Jakub; Albrecht PASCHKE and Branislav VRANA. Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers. Chemosphere. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2020, vol. 249, June 2020, p. 1-9. ISSN 0045-6535. Available from: https://doi.org/10.1016/j.chemosphere.2020.126183.

@article{1671996,
   author = {Urík, Jakub and Paschke, Albrecht and Vrana, Branislav},
   article_location = {OXFORD},
   article_number = {June 2020},
   doi = {https://doi.org/10.1016/j.chemosphere.2020.126183},
   keywords = {Diffusion coefficient; Passive sampling; DGT; Polar organic compounds; Agarose hydrogel; Taylor dispersion},
   language = {eng},
   issn = {0045-6535},
   journal = {Chemosphere},
   title = {Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers},
   url = {https://www.sciencedirect.com/science/article/pii/S0045653520303763?via%3Dihub},
   volume = {249},
   year = {2020}
}

TY  - JOUR
ID  - 1671996
AU  - Urík, Jakub - Paschke, Albrecht - Vrana, Branislav
PY  - 2020
TI  - Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers
JF  - Chemosphere
VL  - 249
IS  - June 2020
SP  - 1-9
EP  - 1-9
PB  - PERGAMON-ELSEVIER SCIENCE LTD
SN  - 00456535
KW  - Diffusion coefficient
KW  - Passive sampling
KW  - DGT
KW  - Polar organic compounds
KW  - Agarose hydrogel
KW  - Taylor dispersion
UR  - https://www.sciencedirect.com/science/article/pii/S0045653520303763?via%3Dihub
L2  - https://www.sciencedirect.com/science/article/pii/S0045653520303763?via%3Dihub
N2  - Diffusion coefficient (D) is an important parameter for prediction of micropollutant uptake kinetics in passive samplers. Passive samplers are nowadays commonly used for monitoring trace organic pollutants in different environmental matrices. Samplers utilising a hydrogel layer to control compound diffusion are gaining popularity. In this work we investigated diffusion of several perfluoroalkyl substances, currently used pesticides, pharmaceuticals and personal care products in 1.5% agarose hydrogel by measuring diffusion coefficients using two methods: a diffusion cell and a sheet stacking technique. Further, diffusion coefficients in water were measured using Taylor dispersion method. The sheet stacking method was used to measure D at 5, 12, 24, and 33 degrees C in order to investigate temperature effect on diffusion. Median D values ranged from 2.0 to 8.6 x 10(-6) cm(2) s(-1) and from 2.1 to 8.5 x 10(-6) cm(2) s(-1) for the diffusion cell and sheet stack methods respectively. For most compounds, the variability between replicates was higher than the difference between values obtained by the two methods. Rising temperature from 10 to 20 degrees C increases the diffusion rate by the factor of 1.41 +/- 0.10 in average. In water, average D values ranged from 3.03 to 10.0 x 10(-6) cm(2) s(-1) and were comparable to values in hydrogel, but some compounds including perfluoroalkyl substances with a long aliphatic chain could not be evaluated properly due to sorptive interactions with capillary walls in the Taylor dispersion method. Sampling rates estimated using the measured D values were systematically higher than values estimated from laboratory sampler calibration in our previously published study, by the factor of 2.2 +/- 1.0 in average.
ER  -

URÍK, Jakub; Albrecht PASCHKE and Branislav VRANA. Diffusion coefficients of polar organic compounds in agarose hydrogel and water and their use for estimating uptake in passive samplers. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2020, vol.~249, June 2020, p.~1-9. ISSN~0045-6535. Available from: https://doi.org/10.1016/j.chemosphere.2020.126183.

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