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首页> 外文期刊>Electroanalysis >Melamine-modified Boron-doped Diamond towards Enhanced Detection of Adenine, Guanine and Caffeine
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Melamine-modified Boron-doped Diamond towards Enhanced Detection of Adenine, Guanine and Caffeine

机译：三聚氰胺修饰的掺硼金刚石对增强腺嘌呤，鸟嘌呤和咖啡因的检测

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摘要

This work describes the electrochemical method of boron-doped diamond (BDD) modification by poly-melamine to obtain organic films. The detection of adenine, guanine and caffeine was carried out by differential pulse wave voltammetry (DPV). The poly-melamine modified B-NCD electrodes exhibit excellent activity towards the electrochemical oxidation of all examined analytes. The poly-melamine modified BDD electrodes in all measurements exhibit a larger peak current and are more sensitive compared to the unmodified BDD electrodes. The detection limit for adenine, guanine and caffeine using poly-melamine modified BDD electrodes was found with 0.2 mu M, 0.02nM and 0.4 mu M, respectively. Moreover, the double-stranded (ctDNA), and single stranded DNA from calf thymus (ssDNA) was detected by DPV.
机译：这项工作描述了用聚三聚氰胺修饰硼掺杂金刚石（BDD）的电化学方法，以获得有机膜。腺嘌呤，鸟嘌呤和咖啡因的检测通过差分脉冲波伏安法（DPV）进行。聚三聚氰胺改性的B-NCD电极对所有检查的分析物表现出优异的电化学氧化活性。与未修饰的BDD电极相比，聚三聚氰胺修饰的BDD电极在所有测量中均表现出较大的峰值电流，并且灵敏度更高。使用聚三聚氰胺修饰的BDD电极对腺嘌呤，鸟嘌呤和咖啡因的检出限分别为0.2μM，0.02nM和0.4μM。此外，通过DPV检测到小牛胸腺的双链（ctDNA）和单链DNA（ssDNA）。

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