This work describes the facile synthesis of silver nanoparticle-decorated zinc oxide nanocomposite through a simple glycol reduction method. The silver nanoparticle-decorated zinc oxide nanocomposite-based pencil graphite electrode has been validated as a perceptive electrochemical sensing podium towards nitrite. The morphology of the prepared nanocomposite has been characterized via specific spectroscopic and electrochemical techniques. The sensor exhibits a notable enhancement in the cyclic voltammetric response to nitrite oxidation at an ideal peak potential of 0.76 V in pH 6.0 acetate buffer. Under optimum conditions of nitrite directly expanded with their concentration in the range from 30 to 1400 μM with a detection limit of 14 μM.

    Abstract
    1 Introduction
    2 Experimental part
        2.1 Reagents
        2.2 Preparation of silver nanoparticle decorated zinc oxide nanocomposite
        2.3 Characterization
        2.4 Preparation of the working electrode
        2.5 Modification of the working electrode
    3 Results and discussion
        3.1 Characterization
        3.2 Electrochemical experiments
        3.3 Linearity and calibration plot
        3.4 Stability of storage and reproducibility of modified electrode
        3.5 The analysis of interference
        3.6 Analytical applications
    4 Conclusions
    Acknowledgments 
    References

• Shridevi Salagare(PG Department of Chemistry and Research Centre, NMKRV College for Women)
• Prashanth S. Adarakatti(Department of Chemistry, SVM Arts, Science and Commerce College)
• Venkataramanappa Yarradoddappa(PG Department of Chemistry and Research Centre, NMKRV College for Women)