Analysis of Octyl- and Nonylphenol and Their Ethoxylates in Water and Sediments by Liquid Chromatography/Tandem Mass Spectrometry

International audience The ubiquitous presence of alkylphenol ethoxylates in the environment as well as concern for endocrine disruption effects in biota caused by their degradation products (such as octyl- and nonylphenol) has raised interest in the environmental fate of these compounds. As part of...

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Bibliographic Details
Published in:Analytical Chemistry
Main Authors: Loyo-Rosales, Jorge, Schmitz-Afonso, Isabelle, Rice, Clifford, Torrents, Alba
Other Authors: University of Maryland College Park, University of Maryland System, USDA Agricultural Research Service Beltsville, Maryland, USDA-ARS : Agricultural Research Service, Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2003
Subjects:
POLYETHOXYLATE SURFACTANTS
ALKYLPHENOL ETHOXYLATES
METABOLITES
NONIONIC SURFACTANTS
SOLID-PHASE EXTRACTION
ENVIRONMENTAL-SAMPLES
DEGRADATION-PRODUCTS
[CHIM.ANAL]Chemical Sciences/Analytical chemistry
[SDV.EE]Life Sciences [q-bio]/Ecology
environment
Back River
Online Access:https://hal-normandie-univ.archives-ouvertes.fr/hal-02402027
https://doi.org/10.1021/ac0262762
Description
Summary:International audience The ubiquitous presence of alkylphenol ethoxylates in the environment as well as concern for endocrine disruption effects in biota caused by their degradation products (such as octyl- and nonylphenol) has raised interest in the environmental fate of these compounds. As part of an effort to model their behavior in a subestuary of the Chesapeake Bay, a quantitative method for the analysis of octyl- and nonylphenol, and their ethoxylates (1−5) in water and sediment was developed. Extraction procedures are based on solid-phase extraction techniques. Identification and quantitation of the analytes is done by liquid chromatography coupled to tandem mass spectrometry. Instrument detection limits for the compounds ranged from 0.1 to 9 pg injected on column, which allowed method detection limits of 0.04−3 ng/L in water and 0.2−13 ng/g of dry weight in sediment. The method was used to analyze water and sediment from the Back River, MD, where concentrations for the individual compounds ranged from <8 to 200 ng/L in water and <9 to 6700 ng/g of dry weight in sediment. Additionally, structural information obtained in the mass spectrometer is presented that supports previous observations that nonylphenol and its ethoxylates are composed mainly of isomers with a tertiary α-carbon.

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