用单壁碳纳米管放大膏状电极电分析食品中叔丁基对苯二酚

IF 2.9 Q2 ELECTROCHEMISTRY
Niloofar Dehdashtian, Seyed-Ahmad Shahidi, Azade Ghorbani-HasanSaraei, Shabnam Hosseini, Mohammad Ahmadi
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引用次数: 0

摘要

本研究介绍了一种简单、快速的电化学传感器,用于食品中叔丁基对苯二酚(TBHQ)的监测和检测。该电化学传感器采用单壁碳纳米管(SWCNTs)作为纳米催化剂对膏状电极(PE)进行改性制备。在碳糊基体上使用SWCNTs作为导电催化剂后,thbhq的氧化电流提高了约2.62倍,氧化电位降低了约50 mV。在采用SWCNTs/PE作为电分析传感器的检测过程中,TBHQ的氧化电流呈现出0.05 ~ 390µM的线性动态范围。另一方面,SWCNTs/PE在最佳条件下成功监测了TBHQ,检测限为10 nM。实际样品分析数据清晰地显示,回收率为97.2 ~ 104.3%,这对于食品传感过程中的一种新的分析工具是非常有趣的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electroanalysis of tert-butylhydroquinone in food products using a paste electrode enlarged with single wall carbon nanotubes as catalyst
In this study, an electrochemical sensor was introduced as a simple and fast electro­analytical tool to monitor and sensing of tert-butylhydroquinone (TBHQ) in food products. The suggested electrochemical sensor is fabricated by modification of paste electrode (PE) by single wall carbon nanotubes (SWCNTs) as nanocatalyst. The oxidation current of TBHQ was improved by about 2.62 times and its oxidation potential was reduced by about 50 mV after using SWCNTs as conductive catalyst on a carbon paste matrix. The oxidation current of TBHQ showed a linear dynamic range of 0.05 to 390 µM in the sensing process using SWCNTs/PE as the electroanalytical sensor. On the other hand, SWCNTs/PE successfully monitored TBHQ with a detection limit of 10 nM at optimum conditions. The real sample analysis data clearly showed a recovery range of 97.2 to 104.3 %, which is very interesting for a new analytical tool in the food-sensing process.
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来源期刊
CiteScore
3.60
自引率
27.30%
发文量
90
审稿时长
6 weeks
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