Development of Potentiometric Phenol Sensors by Nata de Coco Membrane on Screen-Printed Carbon Electrode

Table 2

The average of Nernstian factor of 4 phenol sensors.

Days to	Nernstian factor (mV/decade)	RSD (%)	Bias (%)
1	55.71 ± 0.43	0.77	—
5	54.43 ± 0.27	0.50	2.30
10	53.75 ± 0.12	0.22	3.52
15	53.42 ± 0.48	0.90	4.12
20	51.86 ± 0.12	0.23	6.91