Fabrication of novel polymer-modified graphene-based electrochemical sensor for the determination of mercury and lead ions in water and biological samples

Journal of Analytical Science and Technology

Table 1 Comparison between the detection limit of the proposed method with other previously reported methods

Electrode	Technique	Metal ion	Detection limit (μM)	Reference
Graphene–MnO₂	LSV	Hg²⁺	2	Lu et al. 2015
CPE–SBA-15	DPASV	Hg²⁺	0.4	Cesarino et al. 2008
GCE/CT	DPV	Pb²⁺	0.8	Martinez-Huitle et al. 2010
GCE/PANI	SWV	Pb²⁺	0.1	Wang et al. 2011
Ag/DHE	CV	Pb²⁺	0.76	Othman et al. 2016
PGMGPE	CV	Hg²⁺	6.6	Present work
		Pb²⁺	0.8