Effective solid-phase extraction of chlorophenols with covalent organic framework material as adsorbent

Li, Jiajia; Wang, Juntao; Guo, Yaxing; Yang, Xiu‐Wei; Wu, Qiuhua; Wang, Zhi

doi:10.1016/j.chroma.2022.463077

Cited by 10 publications

(2 citation statements)

References 51 publications

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“…Consequently, the eluent type was initially optimized using a one-at-a-time method, where various solvents were tested. The results revealed that methanol exhibited the highest efficiency, consistent with findings reported by other researchers [29,30]. Consequently, methanol was selected as the eluent for the SPE-HPLC analysis of chlorophenols.…”

Section: Optimization Of the Spe Conditionssupporting

confidence: 89%

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Harnessing an amide‐based covalent organic framework in solid‐phase extraction for chlorophenol analysis in industrial wastewaters

Firouzy,

Ghiasvand,

Hashemi

2024

J of Separation Science

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An amide‐based covalent organic framework (COF) was successfully synthesized using the reaction between 1,3,5‐trimesoyl chloride and ethylenediamine. The structure and morphology of the COF were characterized using Fourier‐transform infrared spectra, nuclear magnetic resonance spectroscopy, X‐ray diffraction, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and Brunauer‐Emmett‐Teller surface area analysis. The COF was employed as a solid‐phase extraction adsorbent for the sampling and preconcentration of chlorophenols from industrial wastewater samples prior to high‐performance liquid chromatography with ultraviolet detection. The experimental parameters influencing the extraction efficiency including type and volume of eluent solvent, sample solution volume, salt concentration, sample flow rate, and sample solution pH were investigated and optimized using a response surface methodology employing Box‐Behnken‐design. Under optimized conditions, calibration curves exhibited good linearities over the range of 0.003–10 µg/mL with determination coefficients (R2) ranging from 0.9982 to 0.9999. The method's limits of detection ranged from 0.001 to 0.01 µg/mL. Good repeatability was achieved with relative standard deviations below 4.7%. The developed procedure utilizing the COF adsorbent was successfully applied to determine chlorophenols accurately and precisely in various industrial wastewater samples.

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Section: Optimization Of the Spe Conditionssupporting

confidence: 89%

“…To further evaluate the performance of the proposed analytical method, a comparison was made with several previously reported methods for the determination of CPs [29,[40][41][42][43][44][45][46]. The results are summarized in Table 3.…”

Section: Comparison Of the Developed Procedures With Other Similar Re...mentioning

confidence: 99%