An improved design of a passive sampler for polar organic compounds based on diffusion in agarose hydrogel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00110397" target="_blank" >RIV/00216224:14310/19:00110397 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs11356-019-04843-6" target="_blank" >https://link.springer.com/article/10.1007%2Fs11356-019-04843-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11356-019-04843-6" target="_blank" >10.1007/s11356-019-04843-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An improved design of a passive sampler for polar organic compounds based on diffusion in agarose hydrogel

Popis výsledku v původním jazyce

Passive samplers based on diffusive gradients in thin hydrogel films (DGT) were recently modified for sampling of polar organic compounds in water. However, since the sampling rates of the commonly used DGT design with the surface area of 3.1 cm(2) are low, we propose to increase them by applying a two-sided design with a larger sampling surface area of 22.7 cm(2). The sampler design consists of two sorptive hydrogel disks compressed between two diffusive hydrogel disk layers strengthened by nylon netting and held together by two stainless steel rings. Sorbent/water distribution coefficients (K-SW) were determined, and the sampler was calibrated for monitoring 11 perfluoroalkyl substances and 12 pharmaceuticals and personal care products in water at laboratory conditions using a closed system with artificial flow generated by submersible pumps. A field performance test was conducted at five locations in the Morava River basin in Czech Republic. The median value of laboratory-derived sampling rates was 43 mL day(-1) with extreme values of 2 mL day(-1) and 90 mL day(-1) for perfluorotridecanoic and perfluoroheptanoic acids, respectively. The log K-SW values of tested compounds ranged from 3.18 to 5.47 L kg(-1), and the estimated halftime to attain sampler-water equilibrium ranged from 2 days to more than 28 days, which is the maximum recommended exposure period, considering potential issues with the stability of hydrogel. The sampler can be used for assessment of spatial trends as well as estimation of aqueous concentration of investigated polar compounds.

Název v anglickém jazyce

An improved design of a passive sampler for polar organic compounds based on diffusion in agarose hydrogel

Popis výsledku anglicky

Passive samplers based on diffusive gradients in thin hydrogel films (DGT) were recently modified for sampling of polar organic compounds in water. However, since the sampling rates of the commonly used DGT design with the surface area of 3.1 cm(2) are low, we propose to increase them by applying a two-sided design with a larger sampling surface area of 22.7 cm(2). The sampler design consists of two sorptive hydrogel disks compressed between two diffusive hydrogel disk layers strengthened by nylon netting and held together by two stainless steel rings. Sorbent/water distribution coefficients (K-SW) were determined, and the sampler was calibrated for monitoring 11 perfluoroalkyl substances and 12 pharmaceuticals and personal care products in water at laboratory conditions using a closed system with artificial flow generated by submersible pumps. A field performance test was conducted at five locations in the Morava River basin in Czech Republic. The median value of laboratory-derived sampling rates was 43 mL day(-1) with extreme values of 2 mL day(-1) and 90 mL day(-1) for perfluorotridecanoic and perfluoroheptanoic acids, respectively. The log K-SW values of tested compounds ranged from 3.18 to 5.47 L kg(-1), and the estimated halftime to attain sampler-water equilibrium ranged from 2 days to more than 28 days, which is the maximum recommended exposure period, considering potential issues with the stability of hydrogel. The sampler can be used for assessment of spatial trends as well as estimation of aqueous concentration of investigated polar compounds.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Science and Pollution Research

ISSN

0944-1344

e-ISSN

1614-7499

Svazek periodika

26

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

15273-15284

Kód UT WoS článku

000468842100051

EID výsledku v databázi Scopus

2-s2.0-85064457215