Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran.
Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Mikrochim Acta. 2021 Aug 26;188(9):305. doi: 10.1007/s00604-021-04966-z.
Metal-organic frameworks (MOFs) have received extensive attention in adsorption applications owing to their high surface area. However, some MOFs do not perform well as the extraction medium when used under aqueous conditions. The low hydrostability of MOFs limits the practical application of these materials in solid-phase microextraction (SPME). Here, the fabrication of a water resistance SPME fiber coating is introduced based on the crystal violet (CV)-modified HKUST-1 framework on copper (Cu@HKUST-1@CV). The HKUST-1 was prepared by the in situ growth method, followed by post-synthetic modification of HKUST-1 with the CV layer. The preparation of the modified HKUST-1 was characterized by FESEM, XRD, FTIR, and DFT approaches. The prepared SPME coating was successfully employed for the quantification of anthracene (AN), as a model analyte, in water samples. The limit of detection was 0.8 ng mL. The developed method will open up a new door towards searching for promising materials in SPME applications.
金属-有机骨架（MOFs）因其高表面积而在吸附应用中受到广泛关注。然而，当在水相条件下使用时，一些 MOFs 作为萃取介质的性能并不理想。MOFs 的低水稳定性限制了这些材料在固相微萃取（SPME）中的实际应用。在这里，我们介绍了一种基于结晶紫（CV）修饰的铜（Cu@HKUST-1@CV）上的 HKUST-1 框架的耐水 SPME 纤维涂层的制备方法。通过原位生长法制备 HKUST-1，然后对 HKUST-1 进行 CV 层的后合成修饰。采用 FESEM、XRD、FTIR 和 DFT 方法对改性 HKUST-1 的制备进行了表征。成功地将制备的 SPME 涂层用于水样中蒽（AN）作为模型分析物的定量分析。检测限为 0.8ng mL。该方法的建立为 SPME 应用中寻找有前途的材料开辟了新的途径。
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