Simultaneous Voltammetric Determination of Ascorbic Acid, Paracetamol, and Caffeine Using Electrochemically Reduced Graphene-Oxide-Modified Electrode

Table 1

Factors and their levels in full factorial design.

Factor	Level
	Low (−1)	Medium (0)	High (+1)
Amount of GO (mg)	2	6	10
Number of cycles	4	8	12
Scan rate (V·s^−1)	0.01	0.08	0.15