An electrochemical detection dependent on Polyaniline (PANI) blended MoS2 decorated GO (MoS2/PANI@GO) ternary nanocomposite has been developed and used for selective and concomitant determination of Vanillin (VAN), Theophylline (TP) and Caffeine (CAF). The surface morphology and structural properties of the composite are denoted by various scientific methods. The electrochemical behaviour of MoS2/PANI@GO has been investigated by Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV). The electrochemical oxidation (anodic) peaks have been observed at 0.59, 1.1 and 1.36v in phosphate buffer (pH 7) for Vanillin, Theophylline and Caffeine, respectively. A good linear current response and limit of detection of 0.043, 0.062 and 0.07 of VAN, TP and CAF, are obtained respectively. The concocted electrode reveals low detection limit, wide linear range, excellent reproducibility, high acuteness and stability. The study is also continued to the analysis of the certain components in the commercial foods and beverage samples.

中文翻译：

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PANI 混合 MoS2 装饰的 GO 三元纳米复合材料，用于食品和饮料中关键成分的高效电化学传感。

已经开发了一种基于聚苯胺 (PANI) 混合 MoS2 修饰的 GO (MoS2/PANI@GO) 三元纳米复合材料的电化学检测方法，用于选择性和伴随测定香兰素 (VAN)、茶碱 (TP) 和咖啡因 (CAF)。复合材料的表面形态和结构特性通过各种科学方法表示。MoS2/PANI@GO 的电化学行为已通过循环伏安法 (CV) 和微分脉冲伏安法 (DPV) 进行了研究。在磷酸盐缓冲液 (pH 7) 中，香草醛、茶碱和咖啡因的电化学氧化（阳极）峰分别在 0.59、1.1 和 1.36v 处观察到。VAN、TP 和 CAF 的良好线性电流响应和检测限分别为 0.043、0.062 和 0.07。调制的电极显示出低检测限，线性范围宽，重现性好，灵敏度高，稳定性好。该研究还继续分析商业食品和饮料样品中的某些成分。