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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101697" target="_blank" >RIV/00216224:14310/18:00101697 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0045653518313122?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045653518313122?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemosphere.2018.07.054" target="_blank" >10.1016/j.chemosphere.2018.07.054</a>

Result language

angličtina

Original language name

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

Original language description

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 &gt;400 angstrom(3), deviated the most from the K-pw -K-ow relationship.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/GA15-16512S" target="_blank" >GA15-16512S: Investigation of accumulation of persistent bioaccumulative toxic organic substances into aquatic organisms</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Chemosphere

ISSN

0045-6535

e-ISSN

—

Volume of the periodical

210

Issue of the periodical within the volume

November

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

662-671

UT code for WoS article

000447112600075

EID of the result in the Scopus database

—