Research Article

Adsorptive Cathodic Stripping Voltammetric Determination of Cefoperazone in Bulk Powder, Pharmaceutical Dosage Forms, and Human Urine

Figure 3

Response surface plots for the influence of deposition time and pulse amplitude (frequency 80 Hz, voltage step 0.007 V) (a) and frequency and voltage step (deposition time 120 s, pulse amplitude 0.1 V) (b) on SW-AdCSV peak current of 0.03 μg/mL cefoperazone.
367914.fig.003a
(a)
367914.fig.003b
(b)