@article { author = {A Pushpanjali, Pemmatte and G Manjunatha, Jamballi and Tigari, Girish and Fattepur, Santosh}, title = {Poly(Niacin) Based Carbon Nanotube Sensor for the Sensitive and Selective Voltammetric Detection of Vanillin with Caffeine}, journal = {Analytical and Bioanalytical Electrochemistry}, volume = {12}, number = {4}, pages = {553-568}, year = {2020}, publisher = {Analytical and Bioanalytical Electrochemistry is an international scientific journal, which is published online every 3 months (since 2009), every 2 months (since 2011) and monthly (since 2018) by Center of Excellence in Electrochemistry, University of Tehran}, issn = {-}, eissn = {2008-4226}, doi = {}, abstract = {In the current work, a novel sensor was developed for the analysis of Vanillin (VN) by electrochemical polymerization of Niacin over the surface of carbon nanotube paste electrode. The features of electrode surface was studied using Field Emission Scanning Electron Microscopy (FE‒SEM) images. Sweep rate variation study was conducted in the optimum pH (pH 7.0) for the evaluation of number of electrons involved in the electrochemical reaction and to investigate the mode of mass transfer phenomena. This investigation reveals that the electrode undergoes adsorption controlled mass transfer process. Based on the data obtained from the measurements the oxidation mechanism of VN was proposed. The prepared sensor was also applied for the simultaneous detection of VN and Caffeine (CF). Quantitative determination of VN was accomplished by cyclic voltammetric (CV) method. The corresponding value of limit of detection (LOD) and limit of quantification (LOQ) of VN was found to be 10.1×10-7 M and 3.3×10-6 M, respectively. In addition, the applicability of the proposed method was checked with the detection of VN in real sample with good recovery data.}, keywords = {Cyclic voltammetry,Vanillin,Poly(Niacin),Real sample analysis}, url = {https://www.abechem.com/article_39221.html}, eprint = {https://www.abechem.com/article_39221_5b4cb9d77cdb1bfb6c48fc3dac8c7fc0.pdf} }