花状氧化锌纳米纤维选择性固相微萃取食品包装材料中的5种苯并三唑类紫外线吸收剂

引用本文: 王会菊, 杨明红, 卞雪丽, 牛丽雪, 刘海兰, 夏丹丹. 花状氧化锌纳米纤维选择性固相微萃取食品包装材料中的5种苯并三唑类紫外线吸收剂[J]. 分析化学, 2021, 49(1): 113-120. doi: 10.19756/j.issn.0253-3820.201308 shu

Citation: WANG Hui-Ju, YANG Ming-Hong, BIAN Xue-Li, NIU Li-Xue, LIU Hai-Lan, XIA Dan-Dan. A Flower-Like Zinc Oxide Nanoflakes Fiber for Selective Solid-Phase Microextraction of 5 Kinds of Benzotriazole Ultraviolet Filters in Food Packaging Materials[J]. Chinese Journal of Analytical Chemistry, 2021, 49(1): 113-120. doi: 10.19756/j.issn.0253-3820.201308 shu

花状氧化锌纳米纤维选择性固相微萃取食品包装材料中的5种苯并三唑类紫外线吸收剂

王会菊 ^{1,2,
,} ,
杨明红 ^1, ,
卞雪丽 ^1, ,
牛丽雪 ^1, ,
刘海兰 ^1, ,
夏丹丹 ^1,

1.
青海民族大学化学化工学院, 西宁 810007;
2.
青海民族大学青藏高原资源化学与生态环境保护国家民委重点实验室, 西宁 810007

通讯作者: 王会菊,E-mail:wanghuiju2019@qhmu.edu.cn

基金项目:
国家重点研发计划项目（No.2019YFC0507405-02）和青海民族大学高层次人才项目（No.2019XGJ02）资助。

摘要: 氧化锌（ZnO）具有良好的化学稳定性和热稳定性，以及较强的吸附性能，可作为固相微萃取（SPME）的纤维涂层。本研究采用水热法在NiTi纤维基体表面生长交联的氧化钛氧化镍复合纳米片（TiO₂@NiOCNFs），用恒电位法在其表面成功构筑花状ZnO纳米片（ZnONFs）涂层。将制备的新型ZnONFs-TiO₂@NiOCNFs-NiTi纤维与高效液相色谱（HPLC）联用，研究了其对典型芳香族化合物的萃取性能。结果表明，所组装的新型ZnONFs纤维涂层对5种苯并三唑类紫外线吸收剂（BUVFs）有良好的萃取选择性和高的萃取效率。在的优化条件下（pH 7.0、萃取温度30℃、萃取时间40 min、解吸时间3 min、搅拌速率500 r/min、5%（w/V）NaCl），本方法对BUVFs的线性范围为0.05~200 μg/L，相关系数大于0.9988，检出限（LODs）为0.042~0.230 μg/kg。单支纤维对50 μg/L BUVFs标准混合溶液萃取测定，日内和日间相对标准偏差（RSD）分别小于6.4%和7.5%（n=5）。所建立的固相微萃取-高效液相色谱（SPME-HPLC）法用于测定不同类塑料食品包装材料中的BUVFs，回收率为83.6%~104.0%，RSD为5.5%~8.3%。此纤维性质稳定、重现性好，单支纤维能够完成整个分析过程。

关键词:

English

A Flower-Like Zinc Oxide Nanoflakes Fiber for Selective Solid-Phase Microextraction of 5 Kinds of Benzotriazole Ultraviolet Filters in Food Packaging Materials

1.
College of Chemistry and Chemical Engineering, Qinghai Nationalities University, Xining 810007, China;
2.
Key Lab of Resource Chemistry & Eco-environmental Protection in Qinghai-Tibet Plateau, State Ethnic Affairs Committee, Qinghai Nationalities University, Xining 810007, China

Corresponding author: WANG Hui-Ju, wanghuiju2019@qhmu.edu.cn

Received Date: 26 May 2020
Revised Date: 30 October 2020
Fund Project:
Supported by the National Key R & D Program of China (No.2019YFC0507405-02) and the High Level Talent Project of Qinghai Nationalities University (No.2019XGJ02).

Abstract: Zinc oxide exhibits high chemical and thermal stability as well as desired adsorption, and can be used as excellent fiber coating of solid phase microextraction (SPME). In this study, the crosslinked titanium and nickel oxide composite nanoflakes (TiO₂@NiOCNFs) coating was in situ grown on nitinol (NiTi) wire by hydrothermal treatment, and then the flower-like zinc oxide nanoflakes (ZnONFs) coating was successfully modified onto the hydrothermally treated NiTi surface via potentiostatic method. Coupled to high performance liquid chromatography (HPLC), the extraction performance of the new ZnONFs-TiO₂@NiOCNFs-NiTi fiber was estimated by using typical aromatic compounds as model analytes. The fabricated fiber showed excellent extraction selectivity and high extraction capability for 5 kinds of benzotriazole ultraviolet filters (BUVFs) in food packaging materials. Under the optimized conditions such as pH=7.0, extraction temperature of 30℃, extraction time of 40 min, desorption time of 3 min, stirring rate at 500 r/min and 5% (w/V) NaCl, the proposed SPME-HPLC methods with ZnONFs-TiO₂@NiOCNFs-NiTi fiber showed a linearity from 0.05 to 200 μg/L with correlation coefficient (R) of higher than 0.9988. The limit of detection (LOD) ranged from 0.042 to 0.230 μg/kg, and the relative standard deviations (RSDs) were below 6.4% and 7.5% for intra-day and inter-day analysis of the 5 kinds of BUVFs at the spiking level of 50 μg/L using a single fiber, respectively. The developed SPME-HPLC method was successfully applied to selective extraction and determination of BUVFs in different types of food packaging materials with recovery of 83.6%-104.0% and RSDs of 5.5%-8.3%. Moreover, the novel fiber possessed good stability and repeatability, and the single fiber could finish all of analysis in the whole sequence.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

花状氧化锌纳米纤维选择性固相微萃取食品包装材料中的5种苯并三唑类紫外线吸收剂

通讯作者: 王会菊,E-mail:wanghuiju2019@qhmu.edu.cn

English

A Flower-Like Zinc Oxide Nanoflakes Fiber for Selective Solid-Phase Microextraction of 5 Kinds of Benzotriazole Ultraviolet Filters in Food Packaging Materials

Corresponding author: WANG Hui-Ju, wanghuiju2019@qhmu.edu.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

花状氧化锌纳米纤维选择性固相微萃取食品包装材料中的5种苯并三唑类紫外线吸收剂

通讯作者: 王会菊,E-mail:wanghuiju2019@qhmu.edu.cn

English

A Flower-Like Zinc Oxide Nanoflakes Fiber for Selective Solid-Phase Microextraction of 5 Kinds of Benzotriazole Ultraviolet Filters in Food Packaging Materials

Corresponding author: WANG Hui-Ju, wanghuiju2019@qhmu.edu.cn

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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