Facile synthesis of aluminum based metal-organic frameworks for high adsorption of artificial sweeteners in beverages and seasonings: Integrating experimental and computational study

IF 4.9 2区化学 Q1 CHEMISTRY, ANALYTICAL

Microchemical Journal Pub Date : 2025-09-27 DOI:10.1016/j.microc.2025.115536

Xing-Wei Luo , Fu-Shuai Kang , Xiao-Li Wang , Da-Feng Jiang , Yun-Liang Lin , Hai-Long Jiang , Ru-Song Zhao

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Abstract

In this study, a metal organic frameworks named MIL-53(Al) was designed and constructed via a facile one-pot route for the efficient capture artificial sweeteners (ASs). Capitalizing on its high stability, large specific surface area and π-conjugated backbone, the material showed excellent adsorption capacity and repeatability. Then a solid-phase extraction (SPE) column founded on MIL-53(Al) was fabricated, and it was applied to enriching and analyzing ASs in combination with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The developed method showed good linearity (r ≥ 0.996), low limit of detection (0.22 ng/L), high precision (RSD < 7.81 %). The applicability of the method was evaluated by analyzing six samples (water, beverages and seasonings). The spiked recoveries of ASs in samples ranged from 78.3 to 105 %, and ASs (11.2–24.1 ng/L) were detected in beverage samples. The potential adsorption mechanism was also elucidated based on integrated adsorption experiments and simulation calculations. In summary, this study establishes a precise method for determining ASs in complex matrices, offering reliable solutions for environmental monitoring and food safety assessment.

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用于饮料和调味料中人工甜味剂高吸附的铝基金属有机骨架的简易合成：实验与计算相结合的研究

在本研究中，设计并构建了一种名为MIL-53（Al）的金属有机框架，通过简单的一锅路线用于高效捕获人工甜味剂（ASs）。利用其高稳定性、大比表面积和π共轭主链，该材料表现出优异的吸附能力和重复性。建立了以MIL-53（Al）为基材的固相萃取（SPE）柱，并将其与高效液相色谱-串联质谱（HPLC-MS/MS）相结合，用于砷的富集与分析。该方法线性好（r≥0.996），检出限低（0.22 ng/L），精密度高（RSD < 7.81%）。通过对6种样品（水、饮料和调味料）的分析，评价了该方法的适用性。样品中砷的加标回收率为78.3% ~ 105%，饮料样品中砷的加标回收率为11.2 ~ 24.1 ng/L。通过综合吸附实验和模拟计算，阐明了潜在的吸附机理。综上所述，本研究建立了复杂基质中as的精确测定方法，为环境监测和食品安全评价提供可靠的解决方案。

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来源期刊

Microchemical Journal 化学-分析化学

CiteScore

8.70

自引率

8.30%

发文量

1131

审稿时长

1.9 months

期刊介绍： The Microchemical Journal is a peer reviewed journal devoted to all aspects and phases of analytical chemistry and chemical analysis. The Microchemical Journal publishes articles which are at the forefront of modern analytical chemistry and cover innovations in the techniques to the finest possible limits. This includes fundamental aspects, instrumentation, new developments, innovative and novel methods and applications including environmental and clinical field. Traditional classical analytical methods such as spectrophotometry and titrimetry as well as established instrumentation methods such as flame and graphite furnace atomic absorption spectrometry, gas chromatography, and modified glassy or carbon electrode electrochemical methods will be considered, provided they show significant improvements and novelty compared to the established methods.