Silicone-water partition coefficients determined by cosolvent
method for chlorinated pesticides, musks, organo phosphates,
phthalates and more

J 2018

Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more

SMEDES, Foppe

Základní údaje

Originální název

Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more

Autoři

SMEDES, Foppe (528 Nizozemské království, garant, domácí)

Vydání

Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2018, 0045-6535

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.108

Kód RIV

RIV/00216224:14310/18:00101697

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1016/j.chemosphere.2018.07.054

UT WoS

000447112600075

EID Scopus

2-s2.0-85052065759

Klíčová slova anglicky

Passive sampling; Silicone-water partition coefficient; Hydrophobic organic compounds; Cosolvent

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 2. 2019 21:24, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

To further support implementation of monitoring by passive sampling, robust sampler-water partition coefficients (K-pw) are required to convert data from passive sampler into aqueous phase concentrations. In this work silicone-water partition coefficients were determined for similar to 80 hydrophobic organic contaminants using the cosolvent method. Partition coefficients (K-pm) were measured in pure water and water-methanol mixtures up to a methanol mole fraction of 0.3 (50% v/v). Subsequently, logK(pw) in pure water was determined as the intercept of linear regression of the logK(pm )with the corresponding methanol mole fractions. LogK(pw) were determined for phthalates, musks, organo phosphorus flame-retardants, chlorobenzenes, pesticides, some PCBs and a number of miscellaneous compounds. The median standard error and 95% confidence interval of the measured logK(pw) was 0.06 and 0.13, respectively. The overall relationship between K-pw and K(ow )seems insufficient to predict K(pw )for unknown compounds. Prediction may work within a group of compounds with similar nature, e.g. homologues but HCH isomers having the same K-ow exhibit K pv , ranging over an order of magnitude. Long alkyl-chain phthalates and tris(2-ethylhexyl) phosphate; all having a molecular volume >400 angstrom(3), deviated the most from the K-pw -K-ow relationship.

Návaznosti

GA15-16512S, projekt VaV

Název: Výzkum akumulace persistentních bioakumulativních toxických organických látek do vodních organismů

Investor: Grantová agentura ČR, Výzkum akumulace persistentních bioakumulativních toxických organických látek do vodních organismů

Citovat

SMEDES, Foppe. Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more. Chemosphere. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2018, roč. 210, November, s. 662-671. ISSN 0045-6535. Dostupné z: https://doi.org/10.1016/j.chemosphere.2018.07.054.

@article{1495622,
   author = {Smedes, Foppe},
   article_location = {OXFORD},
   article_number = {November},
   doi = {https://doi.org/10.1016/j.chemosphere.2018.07.054},
   keywords = {Passive sampling; Silicone-water partition coefficient; Hydrophobic organic compounds; Cosolvent},
   language = {eng},
   issn = {0045-6535},
   journal = {Chemosphere},
   title = {Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more},
   url = {https://www.sciencedirect.com/science/article/pii/S0045653518313122?via%3Dihub},
   volume = {210},
   year = {2018}
}

TY  - JOUR
ID  - 1495622
AU  - Smedes, Foppe
PY  - 2018
TI  - Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more
JF  - Chemosphere
VL  - 210
IS  - November
SP  - 662-671
EP  - 662-671
PB  - PERGAMON-ELSEVIER SCIENCE LTD
SN  - 00456535
KW  - Passive sampling
KW  - Silicone-water partition coefficient
KW  - Hydrophobic organic compounds
KW  - Cosolvent
UR  - https://www.sciencedirect.com/science/article/pii/S0045653518313122?via%3Dihub
L2  - https://www.sciencedirect.com/science/article/pii/S0045653518313122?via%3Dihub
N2  - To further support implementation of monitoring by passive sampling, robust sampler-water partition coefficients (K-pw) are required to convert data from passive sampler into aqueous phase concentrations. In this work silicone-water partition coefficients were determined for similar to 80 hydrophobic organic contaminants using the cosolvent method. Partition coefficients (K-pm) were measured in pure water and water-methanol mixtures up to a methanol mole fraction of 0.3 (50% v/v). Subsequently, logK(pw) in pure water was determined as the intercept of linear regression of the logK(pm )with the corresponding methanol mole fractions. LogK(pw) were determined for phthalates, musks, organo phosphorus flame-retardants, chlorobenzenes, pesticides, some PCBs and a number of miscellaneous compounds. The median standard error and 95% confidence interval of the measured logK(pw) was 0.06 and 0.13, respectively. The overall relationship between K-pw and K(ow )seems insufficient to predict K(pw )for unknown compounds. Prediction may work within a group of compounds with similar nature, e.g. homologues but HCH isomers having the same K-ow exhibit K pv , ranging over an order of magnitude. Long alkyl-chain phthalates and tris(2-ethylhexyl) phosphate; all having a molecular volume >400 angstrom(3), deviated the most from the K-pw -K-ow relationship.
ER  -

SMEDES, Foppe. Silicone-water partition coefficients determined by cosolvent method for chlorinated pesticides, musks, organo phosphates, phthalates and more. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2018, roč.~210, November, s.~662-671. ISSN~0045-6535. Dostupné z: https://doi.org/10.1016/j.chemosphere.2018.07.054.

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