Experimental determination of the partitioning of representative organic pollutants to the air-water interface.
Environ Sci Process Impacts
; 26(3): 510-518, 2024 Mar 20.
Article
en En
| MEDLINE
| ID: mdl-38329481
ABSTRACT
Using glancing-angle laser-induced fluorescence (GALIF) spectroscopy as a probe, the partitioning of naphthalene, fluoranthene, pyrene, umbelliferone, phenol red, and bisphenol A from bulk solution to the air-water interface was examined in both pure water and aqueous solutions of 6 mM octanol. Previous studies provided similar Langmuir adsorption isotherms for anthracene and imidazole 2-carboxaldehyde. The surface partitioning behaviour of each compound in both environments was well described using a Langmuir adsorption model; partitioning coefficients were derived from the fits to such isotherms. Only the PAH molecules, naphthalene, fluoranthene and pyrene, saw an enhancement in the surface partitioning in octanol solution compared to pure water. The surface partitioning to pure water surfaces could be fairly well described using a one parameter linear free energy relationship based on either solubility or KOW.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Agua
/
Contaminantes Ambientales
/
Fluorenos
Idioma:
En
Año:
2024
Tipo del documento:
Article