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Ratiometric electrochemical sensing based on Mo2C for detection of acetaminophen. 2020

Tingting Zhu, and Hailong Ren, and Wencui Liang, and Yangguang Li, and Yuwen Xu, and Miaojuan Dai, and Bang-Ce Ye
Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China. bcye@ecust.edu.cn.

In this work, MoO2 nanoparticles were synthesized and annealed to form Mo2C nanoparticles. This is the first report of a ratiometric electrochemical sensor (R-ECS) for the detection of acetaminophen (AP), in which Mo2C is used as the sensing agent and ferrocene (FC) is used as an internal reference. FC (100 μM) is added directly to the electrolyte solution for convenient operation. The synthesized materials were fully characterized with respect to composition, morphology and electrochemical performance. The oxidation peak potentials of FC (0.196 V) and AP (0.364 V) can be completely separated by the Mo2C modified glassy carbon electrode, and their ratiometric signals are used for the quantification of AP. It was found that the oxidation peak currents of AP at separated potentials on Mo2C/GCE are linear with concentration in the range of 0.5-600 μM, and the detection limit is 0.029 μM (S/N = 3). Mo2C/GCE exhibited decent repeatability, reproducibility, stability, and selectivity. The sensor was then applied to measure AP in tap water and river water.

UI MeSH Term Description Entries
D002244 Carbon A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous
D004566 Electrodes Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum. Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D000082 Acetaminophen Analgesic antipyretic derivative of acetanilide. It has weak anti-inflammatory properties and is used as a common analgesic, but may cause liver, blood cell, and kidney damage. Acetamidophenol,Hydroxyacetanilide,Paracetamol,APAP,Acamol,Acephen,Acetaco,Acetominophen,Algotropyl,Anacin-3,Datril,N-(4-Hydroxyphenyl)acetanilide,N-Acetyl-p-aminophenol,Panadol,Tylenol,p-Acetamidophenol,p-Hydroxyacetanilide,Anacin 3,Anacin3
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D055664 Electrochemical Techniques The utilization of an electrical current to measure, analyze, or alter chemicals or chemical reactions in solution, cells, or tissues. Electrochemical Technics,Electrochemical Technic,Electrochemical Technique,Technic, Electrochemical,Technics, Electrochemical,Technique, Electrochemical,Techniques, Electrochemical
D057230 Limit of Detection Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure. Limits of Detection,Detection Limit,Detection Limits

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