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

Author

Listed:
  • Girish Tigari
  • JG Manjunatha
  • C Raril
  • N Hareesha

    (Department of Chemistry, FMKMC College, Madikeri, Mangalore University Constituent College, Karnataka, India)

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).

Suggested Citation

  • Girish Tigari & JG Manjunatha & C Raril & N Hareesha, 2019. "Electrochemical Determination of Resorcinol with Tartrazine at Non-Ionic Surfactant Modified Graphite Powder and Carbon Nanotube Composite Paste Electrode," Novel Approaches in Drug Designing & Development, Juniper Publishers Inc., vol. 4(5), pages 113-117, January.
    • Handle: RePEc:adp:jnapdd:v:4:y:2019:i:5:p:113-117
    DOI: 10.19080/NAPDD.2019.04.555647
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