A New Approach for the Determination of Benzocaine and Procaine in Pharmaceuticals by Single-Sweep Polarography

Table 3

The calculated number of electrons (n) and ions of H⁺ (zH⁺) involved in electrochemical reduction of BC and PC derivatives at various pH = 1·10⁻³ mol·L⁻¹, = = 5 · 10⁻⁵ mol·L⁻¹, phosphate buffer =0.2 mol·L⁻¹, and =0.5 V·s⁻¹.

Anesthetic	рH	Peаk	n		zH^+
			According to formula [37]	by
РС	4.0	Р1	4	4	3
	6.1	Р1	2	–	1
		Р3	3	–	3
		Р4	2	–	1
ВС	4.0	Р1	4	4	3
	7.5	Р1	2	2	1