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Gold Nanoparticles/Biphenol–biphenoquinone for Ultra‐trace Voltammetric Determination of Captopril
Electroanalysis ( IF 3 ) Pub Date : 2020-10-14 , DOI: 10.1002/elan.202060352
M. Shahbakhsh 1 , Z. Hashemzaei 1 , S. Narouie 1 , Y. Shahbakhsh 1 , M. Noroozifar 2
Affiliation  

This study aims to synthesize gold nanoparticles/biphenol–biphenoquinone (AuNPs−BOH−BQ) and to study its application as a novel heterogeneous electron transfer mediator to modify carbon paste electrode (CPE/Au NPs−BOH−BQ) for ultra‐trace determination of captopril (CP). Characterization results show well dispersed Au NPs with sizes in the range of 8.0–10.5 nm. Under optimized conditions, the calibration plot was linear from 1 to 5×104 nM (two segments, 1–150 nM and 0.15–50.0 μM) and the detection limit was calculated to be 0.4 nM (S/N=3). Finally, the suggested sensor showed stable and reliable responses to CP in CP pharmaceutical tablet and urine samples.

中文翻译:

纳米金/双酚-联苯醌用于超痕量伏安法测定卡托普利

这项研究旨在合成金纳米颗粒/双酚-联苯醌(AuNPs-BOH-BQ),并研究其作为新型异质电子转移介体以修饰碳糊电极(CPE / Au NPs-BOH-BQ)进行超痕量测定的应用卡托普利(CP)。表征结果表明,分散良好的金纳米颗粒尺寸在8.0-10.5 nm之间。在优化条件下,校准图的线性范围为1至5×10 4  nM(两段,1–150 nM和0.15–50.0μM),计算的检出限为0.4 nM(S / N = 3)。最后,建议的传感器对CP药物片剂和尿液样品中的CP表现出稳定而可靠的响应。
更新日期:2020-10-14
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