title: Assessment of the abiotic transformation of 17β-estradiol in the presence of vegetable matter.
abstract: A study using 17 β-(14)C(4)-estradiol ((14)C-E2) was performed to confirm and characterize the catalytic transformation of estrogens in the presence of a model vegetable matter (namely rabbit food) as a surrogate material for vegetable wastes found in sewage. Results corroborated the occurrence of an abiotic transformation. Unknown transformation byproduct(s) accounted, respectively, for 38% and 9% of the initial radioactivity in liquid and extractable solid phases after 72 h; on the other hand, only 15% and 7% of this radioactivity corresponded to (14)C-E2 in those same matrices. Mass balance was closed including the radioactivity irreversibly bounded to the solid phase. Formation of (14)C(4)-estrone was monitored by Liquid Chromatography with tandem Mass Spectrometry detection; negative results were found in all sampling events. This process could be harnessed to optimize sustainable technologies for the removal of phenolic microcontaminants from wastewater.
authors.affiliation: School of Energy, Environmental, Biological and Medical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA.
authors.forename: Ruth
authors.initials: R
authors.lastname: Marfil-Vega
authors.forename: Makram T
authors.initials: MT
authors.lastname: Suidan
authors.forename: Marc A
authors.initials: MA
authors.lastname: Mills
mesh_terms: D000821:Animal Feed; D002853:Chromatography, Liquid; D004958:Estradiol / Q000032:analysis / Q000737:chemistry*; D004970:Estrone / Q000032:analysis / Q000737:chemistry; D053719:Tandem Mass Spectrometry; D014675:Vegetables / Q000737:chemistry*; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*
chemical_list: D014874:Water Pollutants, Chemical; D004970:Estrone; D004958:Estradiol