Application of boehmite as a fiber coating for headspace solid-phase microextraction of chlorophenols from aqueous samples

Authors

Mohammad Saraji, Monir Fouladi, Gholamhossein Mohammadnezhad, Narges Mehrafza

Publication date

2023

Journal

Analytical Methods

Volume

15

Issue

48

Pages

6679-6686

Publisher

Royal Society of Chemistry

Description

In this paper, the extraction of chlorophenols from water samples was carried out using high surface area boehmite nanoparticles as a sorbent. The surfactant-free process employed to make the nano-boehmite used in this work was simple, green, and efficient. The proposed approach was based on headspace solid-phase microextraction, followed by GC-ECD for the determination of analytes. In situ derivatization of analytes was performed with acetic anhydride in a basic medium. Various effective parameters, including the amount of derivatization reagent, ionic strength, desorption temperature and time, extraction temperature, equilibrium time, and extraction time were studied. Under optimal conditions, the linear dynamic range was 0.05–5.0 μg L−1 for 2,4-dichlorophenol and 2,6-dichlorophenol and 0.003–0.1 μg L−1 for 2,4,6-trichlorophenol. A low limit of detection (0.75 × 10−3–15 × 10−3 μg L−1), and relative …