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Triazine covalent organic polymer coated stir bar sorptive extraction coupled with high performance liquid chromatography for the analysis of trace phthalate esters in mineral water and liquor samples

Wang, Zhuo ; He, Man ; Chen, Beibei ; Hu, Bin

Journal of Chromatography A, 2021-12, Vol.1660, p.462665, Article 462665 [Periódico revisado por pares]

Netherlands: Elsevier B.V

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  • Título:
    Triazine covalent organic polymer coated stir bar sorptive extraction coupled with high performance liquid chromatography for the analysis of trace phthalate esters in mineral water and liquor samples
  • Autor: Wang, Zhuo ; He, Man ; Chen, Beibei ; Hu, Bin
  • Assuntos: Chinese liquor and mineral water ; Chromatography, High Pressure Liquid ; Esters ; High performance liquid chromatography ; Limit of Detection ; Mineral Waters ; Phthalate esters ; Phthalic Acids ; Polymers ; Reproducibility of Results ; Stir bar sorptive extraction ; Triazine covalent organic polymer ; Triazines
  • É parte de: Journal of Chromatography A, 2021-12, Vol.1660, p.462665, Article 462665
  • Descrição: •Poly (4,4′-diamino-p-terphenyl-triazine) (PDT) coated stir bar was prepared.•Rich π-electron and triazine structure of PDT help adsorbing five phthalate esters.•PDT coating shows high extraction recovery (65–96%) and fast adsorption kinetics.•DEP (1.19–2.98 μg/L) and DPrP (0.77–0.91 μg/L) were detected in mineral waters.•The method merits high sensitivity and low detection limit (0.04–0.27 µg/L). Cyanuric chloride and 4,4′-diamino-p-terphenyl were adopted as monomers to synthesize poly (4,4′-diamino-p-terphenyl-triazine) (PDT) covalent organic polymer. PDT coated stir bar was prepared and evaluated for the extraction of five phthalate esters (PAEs) with relatively lower logP values (2.7–4.9), including diethyl phthalate, diallyl phthalate, dipropyl phthalate, benzylbutyl phthalate and dibutyl phthalate. It exhibited higher extraction recovery (> 65%) and faster extraction kinetics (50 min vs 240 min) for target PAEs over commercial polydimethylsiloxane coated stir bar. Based on the superior performance, PDT coated stir bar sorptive extraction was combined with high-performance liquid chromatography-diode array detection for trace analysis of five PAEs plasticizers. The limits of detection for target PAEs were 0.04–0.27 μg/L, with the enrichment factors of 54–80-fold. The potential of the method was demonstrated by detecting five target PAEs in Chinese liquor and mineral water samples. No target analytes were detected in Chinese liquor sample, and recoveries of 85.4–109% were obtained for target analytes in spiked liquor samples; trace diethyl phthalate (1.19–2.98 μg/L) and dibutyl phthalate (0.77–0.91 μg/L) were detected in two mineral water samples, with recoveries of 85.4–117% and 87.4–117% respectively in spiked mineral water samples.
  • Editor: Netherlands: Elsevier B.V
  • Idioma: Inglês
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