2016
Calibration of a passive sampler based on stir bar sorptive extraction for the monitoring of hydrophobic organic pollutants in water
VRANA, Branislav, Lucie KOMANCOVÁ a Jaromír SOBOTKAZákladní údaje
Originální název
Calibration of a passive sampler based on stir bar sorptive extraction for the monitoring of hydrophobic organic pollutants in water
Autoři
VRANA, Branislav (703 Slovensko, garant, domácí), Lucie KOMANCOVÁ (203 Česká republika, domácí) a Jaromír SOBOTKA (203 Česká republika, domácí)
Vydání
Talanta, AMSTERDAM, Elsevier, 2016, 0039-9140
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.162
Kód RIV
RIV/00216224:14310/16:00089980
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000373651000011
Klíčová slova anglicky
Stir bar sorptive extraction; Passive dosing; Passive sampling; Polydimethylsiloxane; Priority organic pollutants; Water monitoring
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2020 11:22, Mgr. Marie Šípková, DiS.
Anotace
V originále
A passive sampler based on stir bars coated with polydimethylsiloxane (PDMS) was calibrated for the measurement of time-weighted average concentrations of hydrophobic micropollutants, including polycyclic aromatic hydrocarbons, polychlorinated biphenyls and organochlorine pesticides, in water. Stir bar/water partition coefficients were measured by equilibrating bars with sheets made of silicone rubber material for which partition coefficients had been reported previously. Kinetic parameters characterising the exchange of analytes between stir bars and water were determined under controlled exposure conditions using a passive dosing system. The dosing system consisted of silicone rubber sheets with a large surface area, spiked with analytes. During stir bar sampler exposure, analytes partitioned from dosing sheets to water in the exposure tank and maintained constant exposure concentrations. Reversible and isotropic exchange kinetics of analytes between sampler and water was confirmed by measuring the release of a range of performance reference compounds (PRCs) from stir bars. Application of a two-resistance model confirmed that, except for hexachlorocyclohexane isomers, uptake of the test compounds under the experimental conditions was controlled by diffusion in the water boundary layer. This permits the application of PRCs for in situ calibration of uptake kinetics of test compounds to stir bars.
Návaznosti
LM2011028, projekt VaV |
| ||
LO1214, projekt VaV |
| ||
603437, interní kód MU |
|