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

Table 2

The equations of linear dependence of E, V on pH on a phosphate buffer.

Anesthetics	Peak	рН range	Equation	Correlation coefficient, R
РС	Р1	2.1-4.3	E=(-0,047±0.007)+(0.082±0.002)·рH	0.9984
		5.0-9.1	E=(0.021±0.002)+(0.065±0.003)·рH	0.9961
	Р3	5.0-8.1	E=(-0.16±0.02)+(0.069± 0.003)·рH	0.9971
	Р4	5.0-8.1	E=(0.011±0.020)+(0.078±0.003)·рH	0.9977
ВС	Р1	2.0-4.5	E=(-0,018±0.009)+(0.071±0.002)·рH	0.9957
		5.0-9.0	E=(0.03±0.03)+(0.062±0.004)·рH	0.9951