The metal–organic framework PCN-250 for the extraction of endocrine disrupting compounds in human urine by stir bar sorptive dispersive microextraction

Vállez-Gomis, Víctor; Trujillo−Rodríguez, María J.; Benedé, Juan L.; Pasán, Jorge; Pino, Verónica; Chisvert, Alberto

doi:10.1016/j.microc.2022.108277

Cited by 9 publications

(1 citation statement)

References 59 publications

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“…So far, several sample preparation methods such as liquid liquid extraction [17], solid-phase extraction (SPE) [18], solid-phase microextraction [19], single drop microextraction [20], HF-liquid phase microextraction (HF-LPME) [21], cloud point extraction (CPE) [22], stir bar sorptive extraction [23], dispersive liquid-liquid microextraction (DLLME) [24], and DLLME based on solidification of floating organic drop [25] have been used to extraction and preconcentration of BPA in different matrices. Nowadays, deep eutectic solvents (DESs), which consist of two main components, a hydrogen bond donor (HBD) and a hydrogen bond acceptor (HBA), have replaced common toxic organic solvents as green extractants [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of pH‐responsive deep eutectic solvent followed by HPLC for trace determination of bisphenol A in water samples

Cao,

2023

J of Separation Science

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A microextraction based on pH‐responsive deep eutectic solvent combined with high‐performance liquid chromatography was developed for the separation, preconcentration, and determination of bisphenol A in water samples. Five deep eutectic solvents were prepared using thymol (hydrogen bond acceptor) and 6‐, 8‐, 9‐, 10‐, and 12‐carbon carboxylic acids (hydrogen bond donor), and were used as extraction solvent. Herein, by alkalinizing the environment, phase transition takes place, and by adding acid, phase separation and extraction of analytes occur simultaneously. Some important parameters on the extraction such as deep eutectic solvent type, molar ratio of deep eutectic solvent components, deep eutectic solvent volume, potassium hydroxide concentration, hydrochloric acid volume, extraction time, and salt addition were optimized. Under the optimum conditions, intra‐ and interday precisions of the method based on seven replicate measurements of 10 μg L–1 of bisphenol A in water samples were 2.2% and 4.3%, respectively. The analytical performance of the method showed linearity over the concentration of 0.05–50 μg L−1 with the detection limit of 0.02 μg L−1. The accuracy of the method was confirmed by spiking different concentrations of bisphenol A in real water samples and obtaining relative recoveries in the range of 92.5%−105.2%.

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