International Journal of Electrochemistry / 2018 / Article / Tab 4

Research Article

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

Table 4

Characteristics of quantitative polarographic determination of BC and PC, pH 4.0. = 1·10−3 mol·L−1  =0.5 Vs−1.

Analytical parameterBCPC

Peak potential, V-0.24-0.51
Linear concentration range, mol·L−11·10−6 - 5·10−51·10−6 - 5·10−5
Slope (μA·L/ mol)4.1·1049.1·104
Intercept (μA)1.7·10−24.2·10−2
Correlation coefficient, R0.99960.9996
RSD (%)2.121.13
Limit of quantitation (LOQ), mol·L−11.8·10−61.9·10−6
Limit of detection (LOD), mol·L−15.6·10−66·10−6

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