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首页> 外文期刊>Food Chemistry >Fabrication of UMCM-1 based monolithic and hollow fiber - Metal-organic framework deep eutectic solvents/molecularly imprinted polymers and their use in solid phase microextraction of phthalate esters in yogurt, water and edible oil by GC-FID
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Fabrication of UMCM-1 based monolithic and hollow fiber - Metal-organic framework deep eutectic solvents/molecularly imprinted polymers and their use in solid phase microextraction of phthalate esters in yogurt, water and edible oil by GC-FID

机译：基于UMCM-1的整体和中空纤维的制造-金属有机骨架深共熔溶剂/分子印迹聚合物及其通过GC-FID在酸奶，水和食用油中固相微萃取邻苯二甲酸酯的用途

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摘要

In this study, for the first time, hollow fiber and monolithic fiber were fabricated based on metal-organic framework deep eutectic solvents/molecularly imprinted polymers (MOF- DES/MIPs) and were used for microextraction of phthalate esters under termed hollow fiber liquid membrane-protected solid-phase microextraction (HFLMP-SPME) followed by gas chromatography- flame ionization detection. Several parameters influencing extraction recoveries of phthalate esters including adsorption and desorption parameters were investigated and optimized using fabricated MOF- DES/MIPs monolithic fiber. Under optimal conditions, detection limits (S/N = 3) of the method were in a range of 0.008-0.03 mu g L-1 and limits of quantification (S/N = 10) were between 0.028 and 0.12 mu g L-1. RSD (%) for intra-day and inter-day precisions were between 2.4-4.7% and 2.6-3.4%, respectively. Subsequently, this procedure was successfully applied with satisfactory results in the determination of phthalate esters in yogurt, water, and soybean oil samples. The R (%) ranged from 95.5 to 100.0% in different samples.
机译：在这项研究中，首次基于金属-有机骨架深共熔溶剂/分子印迹聚合物（MOF-DES / MIPs）制备了中空纤维和整体纤维，并用于在中空纤维液膜下微萃取邻苯二甲酸酯。 -保护的固相微萃取（HFLMP-SPME），然后进行气相色谱-火焰电离检测。使用制造的MOF-DES / MIPs单片纤维研究并优化了影响邻苯二甲酸酯萃取回收率的几个参数，包括吸附和解吸参数。在最佳条件下，该方法的检出限（S / N = 3）在0.008-0.03μg L-1范围内，定量限（S / N = 10）在0.028至0.12μgL-1之间。日内和日间精度的RSD（％）分别在2.4-4.7％和2.6-3.4％之间。随后，该方法成功应用于酸奶，水和豆油样品中邻苯二甲酸酯的测定，结果令人满意。在不同样品中，R（％）的范围为95.5％至100.0％。

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