Metal-Organic Framework ZIF-67@NiCo-LDHs for Extraction of Polycyclic Aromatic Hydrocarbons of Water Sample

IF 2.4 3区化学 Q2 CHEMISTRY, ORGANIC

Polycyclic Aromatic Compounds Pub Date : 2024-07-02 DOI:10.1080/10406638.2023.2238868

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Abstract

In this study, solid-phase microextraction (SPME) fiber adsorbents were coated with the metal-organic framework ZIF-67 and protected by layered double hydroxides (LDH) nanotubes. The findings unequivocally show that the extraction selectivity is dependent on the surface element composition of coatings produced from ZIF-67. The ZIF-67@NiCo-LDHs coating was chosen for the enrichment and detection of polycyclic aromatic hydrocarbons (PAH) in water samples due to its long-term stability and superior extraction selectivity. The calibration curves were dynamically linear and ranged from 0.00 to 100 g L⁻¹ at the optimum circumstances, with correlation values (R²) above 0.996–0.999. LOD values ranged from 0.07 to 0.5 ng L⁻¹. Under ideal circumstances, the test compounds’’ repeatability for one fiber (n = 3), expressed as relative standard deviation (RSD%), ranged between 7.5 and 9.2%. Additionally, the synthetic fiber displayed 40 cycles of extraction and desorption and perfectly controlled development.

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用于萃取水样中多环芳烃的金属有机框架 ZIF-67@NiCo-LDHs

本研究在固相微萃取（SPME）纤维吸附剂上涂覆了金属有机框架 ZIF-67，并用层状双氢氧化物（LDH）纳米管进行了保护。研究结果明确显示，萃取选择性取决于 ZIF-67 涂层的表面元素组成。由于 ZIF-67@NiCo-LDHs 涂层具有长期稳定性和优异的萃取选择性，因此被选为富集和检测水样中多环芳烃 (PAH) 的涂层。在最佳条件下，校准曲线呈动态线性，范围在 0.00 至 100 g L-1 之间，相关系数（R2）在 0.996-0.999 以上。LOD 值在 0.07 至 0.5 纳克/升之间。在理想情况下，测试化合物对一种纤维（n = 3）的重复性（以相对标准偏差（RSD%）表示）介于 7.5% 和 9.2% 之间。此外，合成纤维的萃取和解吸循环次数为 40 次，并且完全可控。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polycyclic Aromatic Compounds 化学-有机化学

CiteScore

3.70

自引率

20.80%

发文量

412

审稿时长

3 months

期刊介绍： The purpose of Polycyclic Aromatic Compounds is to provide an international and interdisciplinary forum for all aspects of research related to polycyclic aromatic compounds (PAC). Topics range from fundamental research in chemistry (including synthetic and theoretical chemistry) and physics (including astrophysics), as well as thermodynamics, spectroscopy, analytical methods, and biology to applied studies in environmental science, biochemistry, toxicology, and industry. Polycyclic Aromatic Compounds has an outstanding Editorial Board and offers a rapid and efficient peer review process, as well as a flexible open access policy.