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Simultaneous Detection of Paracetamol, Ascorbic Acid, and Caffeine Using a Bismuth–Silver Nanosensor
Electroanalysis ( IF 2.7 ) Pub Date : 2020-10-07 , DOI: 10.1002/elan.202060389
Charlton Van der Horst 1 , Bongiwe Silwana 2 , Eric Gil 3 , Emmanuel Iwuoha 4 , Vernon Somerset 1
Affiliation  

The bimetallic nanoparticles of bismuth‐silver were used to modify a disk GCE for the simultaneous electrochemical analysis of caffeine (CAF), ascorbic acid (AA), and paracetamol (PAR). The constructed Bi‐AgNPs/GCE illustrated strong electrocatalytic activity towards the oxidation of CAF, PAR, and AA. Under the optimum conditions, the sensor provided linearity for PAR, AA, CAF between 2 to 20 μΜ, 10 to 70 μM, and 2 to 40 μM (n=3), respectively. The detection limits for CAF, PAR, and AA was 2.36 μM, 0.155 μM, and 0.697 μM, respectively. The GCE/Bi‐AgNPs sensor presented good sensitivity and selectivity for the simultaneous electrochemical analysis of CAF, PAR, and AA.

中文翻译:

铋银纳米传感器同时检测扑热息痛,抗坏血酸和咖啡因

铋-银的双金属纳米颗粒用于修饰圆盘GCE,用于咖啡因(CAF),抗坏血酸(AA)和对乙酰氨基酚(PAR)的同时电化学分析。所构建的Bi-AgNPs / GCE对CAF,PAR和AA的氧化具有很强的电催化活性。在最佳条件下,该传感器为PAR,AA,CAF提供的线性分别在2至20μM,10至70μM和2至40μM之间(n = 3)。CAF,PAR和AA的检出限分别为2.36μM,0.155μM和0.697μM。GCE / Bi-AgNPs传感器对CAF,PAR和AA的同时电化学分析具有良好的灵敏度和选择性。
更新日期:2020-12-01
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