Table 5.

Limit of detection and regression coefficients obtained for catechol and hydroquinone using the anodic (LD_A) and the cathodic (LD_C) peaks.

Sensor	LDA (mol·L−1)	R2 (anode)	LDC (mol·L−1 )	R2 (cathode)
Catechol
PEDOT/PSS	4.96 × 10−5	0.993	6.58 × 10−6	0.998
PEDOT/PSS/LuPc2	1.23 × 10−6	0.999	1.03 × 10−6	0.999
PEDOT/PSS/CuPc	2.99 × 10−6	0.992	1.81 × 10−6	0.996
PEDOT/PSS/AuNP	2.18 × 10−6	0.998	0.87 × 10−6	0.999
Hydroquinone
PEDOT/PSS	2.85 × 10−5	0.971	1.61 × 10−5	0.970
PEDOT/PSSLuPc2	1.80 × 10−5	0.996	9.41 × 10−6	0.997
PEDOT/PSS/CuPc	2.69 × 10−5	0.972	1.51 × 10−5	0.998
PEDOT/PSS/AuNP	1.97 × 10−5	0.993	7.55 × 10−6	0.996