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Ionic Liquid and f‐MWCNTs Fabricated Glassy Carbon Electrode for Determination of Amygdalin in Apple Seeds
Electroanalysis ( IF 2.7 ) Pub Date : 2020-10-19 , DOI: 10.1002/elan.202060401
Rajasekhar Chokkareddy 1 , Gan G Redhi 1
Affiliation  

This work proposes a novel electrochemical sensor based on functionalised multiwalled carbon nanotubes (f‐MWCNTs), zinc oxide nanoparticles (ZnONPs), and (methyltrioctylammonium chloride ionic liquid (IL)) fabricated glassy carbon electrode (GCE), for the determination of amygdalin (AMY) in apple seeds. X‐ray diffraction (XRD), Brunauer‐Emmett‐Teller (BET), Fourier‐transform infrared spectroscopy (FT‐IR), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA) as well as electrochemical impedance spectroscopy (EIS) techniques were used to characterize the synthesized ZnONPs and its nanocomposite. EIS and differential Pulse Voltammetry (DPV) was utilized to investigate the electrochemical behavior of AMY on the IL‐ZnONPs‐f‐MWCNTs nanocomposite modified GCE. The linear range response is obtained from 0.012–6 μM for AMY determination under optimized experimental conditions, and the limit of detection (LOD) values were found to be 0.012 μM. The novel method developed was successfully used to determine AMY in spiked apple seed samples with satisfactory results.

中文翻译:

离子液体和f-MWCNTs制备的玻碳电极测定苹果种子中的苦杏仁苷

这项工作提出了一种基于功能化多壁碳纳米管(f-MWCNTs),氧化锌纳米颗粒(ZnONPs)和(甲基三辛基氯化铵离子液体(IL))制备的玻璃碳电极(GCE)的新型电化学传感器,用于测定苦杏仁苷(苹果种子中的AMY)。X射线衍射(XRD),Brunauer-Emmett-Teller(BET),傅立叶变换红外光谱(FT-IR),透射电子显微镜(TEM),热重分析(TGA)以及电化学阻抗谱(EIS)技术用来表征合成的ZnONPs及其纳米复合材料。EIS和差分脉冲伏安法(DPV)用于研究AMY在IL-ZnONPs-f-MWCNTs纳米复合改性GCE上的电化学行为。线性范围响应从0获得。在优化的实验条件下用于AMY测定的012–6μM,检测限(LOD)值为0.012μM。开发的新方法已成功用于测定加标的苹果种子样品中的AMY,结果令人满意。
更新日期:2020-12-01
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