Evaluation of Hydrophilized Graphite Felt for Electrochemical Heavy Metals Detection (Pb²⁺, Hg²⁺)

Table 1

Data of the calibration curves.

	Regression equations and correlation coefficient (R)	LOD (M)	LOQ (M)
Pb^2+	;	5.2 10^−8	1.5 10^−7
Pb^2+ (mix)	;	8.6 10^−8	2.6 10^−7
Hg^2+	;	2.6 10^−7	7.8 10^−7
Hg^2+ (mix)	;	1.1 10^−7	3.5 10^−7

C: Pb²⁺ and Hg²⁺ concentration (M).