Abstract
The Ceylon Journal of Science is published by the University of Peradeniya, Sri Lanka. Full text available. The journal also has its own website. The Ceylon Journal of Science is a continuation of the Ceylon Journal of Science (Biological Sciences) which is no longer being published as a separate journal. The history of the journal can be found here.From May 2020, Ceylon Journal of Science is indexed in DOAJ.
Highlights
Mercury is a well-known toxicant in human health and the environment (Wang et al, 2004)
The enhanced intensity ratio in Nitrogen-doped reduced graphene oxide (N-reduced GO (rGO)) is ascribed to lattice defects and the sp2 C stretching vibrations
The results indicate the applicability of the N-rGO modified glassy carbon electrode (GCE) for detection of Hg(II)in natural water
Summary
Mercury is a well-known toxicant in human health and the environment (Wang et al, 2004). It is converted into toxic methylated mercury by microorganisms under reducing natural conditions (Abollino et al, 2009; Baird and Cann, 2012; Bridges et al, 2020). The electrochemical techniques are attractive in detecting Hg(II) species due to their sensitivity, robustness and low-cost (Martín-Yerga et al, 2013). Active substrates for electrochemical sensors are developed using noble metal nanoparticles (Gong et al, 2010b), transition metal oxides (Fayazi et al, 2016) and carbonaceous materials (Wanekaya, 2011) with limited success. There are voluminous literature available on the synthesis of graphene nano-composites, such as graphene oxide (GO)/Au (Martín-Yerga et al, 2012; Sahoo et al, 2015), GO/Pt (Pinilla et al, 1996), reduced GO (rGO)/
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