Electrochemical Determination of Resorcinol with Tartrazine at Non-Ionic Surfactant Modified Graphite Powder and Carbon Nanotube Composite Paste Electrode

Girish Tigari, Manjunatha Jg, C Raril and N Hareesha
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N Hareesha: Department of Chemistry, FMKMC College, Madikeri, Mangalore University Constituent College, Karnataka, India

Novel Approaches in Drug Designing & Development, 2019, vol. 4, issue 5, 113-117

Abstract: In this study, a sensitive and selective electrochemical sensor was developed for electrochemical determination of resorcinol (RC) using graphite powder and carbon nanotube composite paste electrode modified with TX-100 (TX-100/GPCNTCPE) in phosphate buffer solution (PBS), pH 7.0 using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The GPCNTCPE/TX-100 gives excellent current response for resorcinol as compared to bare graphite powder and carbon nanotube composite paste electrode (BGPCNTCPE). The impact of pH, Sweep rate and concentration of RC were evaluated. The anodic peak of RC was detected at 0.503 V vs. SCE with current response 11.40 μA. The proposed sensor offers low detection limit of order 3.41×10-6 M and limit of quantization (LOQ) is 11.42×10-6 M . This sensor is also adopted for simultaneous determination RC and tartrazine (TZ).

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Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:adp:jnapdd:v:4:y:2019:i:5:p:113-117

DOI: 10.19080/NAPDD.2019.04.555647

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