基于ZIF-8/WCNT电化学传感器检测呋喃西林在实验教学中的设计与探索

doi:10.3866/PKU.DXHX202211061

Abstract

Abstract:

Herein we describe an innovative comprehensive experiment titled "Design and Evaluation of a ZIF-8/WCNT-Based Electrochemical Sensor for Nitrofurazone Determination in Experimental Teaching" used in our undergraduate program. The experiment comprises several modules, namely synthesis and characterization of Zn-MeIM metal-organic framework ZIF-8, preparation of an electrochemical sensor, optimization of experimental conditions, and development of analytical methods. The experiment involves analytical chemistry, materials chemistry, and other secondary chemistry branches. Owing to its interdisciplinary features and remarkable expansibility, the experiment is suitable for undergraduate experimental analytical chemistry teaching.

Key words: Innovative comprehensive experiment, ZIF-8/WCNT, Electrochemical sensor, Nitrofurazone

Meijie Guo, Liwen Ma, Yunkang Fan, Jianfang Qin, Yanqing Zhang, Haiying Yang. Design and Evaluation of a ZIF-8/WCNT-Based Electrochemical Sensor for Nitrofurazone Determination in Laboratory Teaching[J].University Chemistry, 2023, 38(9): 209-217.

Figures/Tables 11

References 15

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试剂名称	简称或分子式	纯度或规格	用量	生产厂家
全氟化磺酸酯	Nafion	分析纯(5%) (质量分数)	0.06 mL	美国Sigma试剂公司
呋喃西林	C₆H₆N₄O₄	分析纯	0.0990 g	日本东京化成工业株式会社
二甲咪唑	MeIM	分析纯	3.70 g	阿拉丁试剂
六水合硝酸锌	Zn(NO₃)₂∙6H₂O	分析纯	1.67 g	阿拉丁试剂
多壁碳纳米管	WCNT		0.02 g	江苏先丰纳米材料科技有限公司
甲醇	CH₃COOH	分析纯	300.0 mL	国药集团化学试剂有限公司
冰乙酸	CH₃COOH	分析纯	11.42 mL	国药集团化学试剂有限公司
无水乙酸钠	CH₃COONa	分析纯	27.22 g	国药集团化学试剂有限公司
氯化钾	KCl	分析纯	7.46 g	国药集团化学试剂有限公司
二甲基甲酰胺	C₃H₇NO	分析纯	54.0 mL	国药集团化学试剂有限公司

仪器名称	生产厂家	规格型号
玻碳电极	武汉高仕睿联科技有限公司	Φ = 3 mm
电化学工作站	上海辰华仪器公司	CHI 760E
场发射扫描电子显微镜	日本日立公司	S-4800
电子天平	梅特勒-脱利多仪器(上海)有限公司	ME54E
高功率数控超声波清洗器	昆山市超声仪器有限公司	KQ-400KDE

标示值/(μmol∙L⁻¹) ^a	测定值/(μmol∙L⁻¹) ^b	加入量/(μmol∙L⁻¹)	测定量/(μmol∙L⁻¹)	回收率/%
10.0	10.1 (±3.20%)	10.0	9.85	98.5
10.0	10.1 (±3.20%)	20.0	20.6	103.0

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Design and Evaluation of a ZIF-8/WCNT-Based Electrochemical Sensor for Nitrofurazone Determination in Laboratory Teaching

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