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首页> 外文期刊>The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry >Application of a beta-cyclodextrin/graphene oxide-modified fiber for solid-phase microextraction of six fragrance allergens in personal products
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Application of a beta-cyclodextrin/graphene oxide-modified fiber for solid-phase microextraction of six fragrance allergens in personal products

机译：β-环糊精/氧化石墨烯改性纤维在个人产品中六种芳香过敏原固相微萃取中的应用

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摘要

A new beta-cyclodextrin/graphene oxide hybrid material prepared via a chemical covalent interaction and layer-to-layer assembly was developed as a sorbent for the solid-phase microextraction of fragrance allergens. As a result of its ultra-large surface area, large delocalized pi-electron system and abundant hydroxyls, the beta-cyclodextrin/graphene oxide-coated fiber could be used to extract particular compounds via strong pi-pi interactions, van der Waals forces and hydrogen bonding interactions. beta-Cyclodextrin with a hydrophobic interior cavity and hydrophilic peripheral face was conducive in extracting the fragrances with hydrophobic and hydrophilic groups. Under the optimized extraction and desorption conditions, the beta-cyclodextrin/graphene oxide-coated fiber showed acceptable extraction efficiency for hydrophilic and hydrogen-bonding-donating alcohols. Compared with other methods based on different coating fibers, the proposed fiber obtained wide linear ranges for fragrances with correlation coefficients ranging from 0.9921 to 0.9970, and low limits of detection in the range of 0.050-0.150 mu g L-1. The obtained results indicated that the newly developed fiber was a selective, feasible and cost-effective microextraction medium and could be successfully applied for the determination of several fragrances in personal products.
机译：通过化学共价相互作用和层到层组装制备的新型β-环糊精/氧化石墨烯杂化材料被开发为芳香剂过敏原固相微萃取的吸附剂。由于其超大的表面积，大的离域π电子体系和丰富的羟基，可使用β-环糊精/氧化石墨烯涂层的纤维通过强pi-pi相互作用，范德华力和氢键相互作用。具有疏水性内腔和亲水性外周面的β-环糊精有助于提取具有疏水性和亲水性基团的香料。在最佳的萃取和解吸条件下，β-环糊精/氧化石墨烯包覆的纤维对于亲水性和氢键键合醇显示出可接受的萃取效率。与基于不同涂层纤维的其他方法相比，所提出的纤维获得了较宽的线性香气线性范围，相关系数范围为0.9921至0.9970，检测限较低，为0.050-0.150μg L-1。所得结果表明，新开发的纤维是一种选择性，可行且具有成本效益的微萃取介质，可成功地用于测定个人产品中的几种香料。

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