Anodic Determination of Acetylsalicylic Acid at a Mildly Oxidized Boron-Doped Diamond Electrode in Sodium Sulphate Medium

Table 1

Parameters of calibration plots (𝐼=𝑎𝐶+𝑏; 𝐼 (μA); 𝑎 (μA mM⁻¹); 𝐶 (mM); 𝑏 (μA)), determination coefficient, and LOD values for acetylsalicylic acid (ASA) determination using CV, DPV, and CA methods.

Figure	Method	Concentration range (mM)	Regression equation of linear calibration plot	Sensitivity (μA mM^−1)	𝑅^2	LOD (μM)
—	CV	0.01–0.08	𝐼=24.175𝐶+0.039	24.175	0.998	1.02
Figure 3	DPV	0.01–0.1	𝐼=12.86𝐶+0.041	12.86	0.998	1.03
Figure 5	CA	0.01–0.09	𝐼=5.684𝐶−0.009	5.684	0.997	1.03
Figure 6	CA^a	0.01–0.08	𝐼=21.397𝐶+0.034	21.397	0.998	1.08

^aContinuous addition, stirred solution.