Nanomolar determination of hydrazine by TiO2 nanoparticles modified carbon paste electrode

Voltammetric determination of tinidazole in pharmaceutical tablets using carbon paste electrode

“…Inset of Figure 2 shows plot of I pc (cathodic peak current) of tinidazole versus  (scan rate). In contrast to the correlation coefficient of 0.9922 for the dependence of cathodic peak current on the square root of scan rate (data not shown), an improved correlation coefficient (R 2 ) of 0.9964 was obtained for the linear dependence of cathodic peak current on the scan rate showing that the kinetics of the reduction of tinidazole at carbon paste electrode is predominantly adsorption controlled [30]. Taking the integrated peak area of the peak at scan rate of 100 mV/s in Figure 2, the number of electrons participated in the rate determining step was estimated using equation 1 at a temperature of 31 …”

Electrochemical investigation of L-dopa and simultaneous resolution in the presence of uric acid and ascorbic acid at a poly (methyl orange) film coated electrode: A voltammetric study

“…The correlation coefficient for first and second linearity was 0.9939 and 0.9962. The decrease in the sensitivity (slop), second linearity range was due to the kinetic limitations [30,34]. The detection limit for L-dopa in the lower range region was found to be 3.69 Â 10 À6 M and quantification limit was 12.3 Â 10 À6 M. The detection limit and limit of quantification was calculated by using the formulas, LOD = 3S/M and LOQ = 10S/M [35][36][37], where 'S' is the standard deviation and 'M' is the slop obtained from the calibration plots.…”

Voltammetric resolution of dopamine in the presence of ascorbic acid and uric acid at poly (calmagite) film coated carbon paste electrode

“…The correlation coefficient for the first linearity was 0.99997 and for the second it was found to be 0.99966. The decrease of sensitivity (slope) in the second linear range is likely to be due to kinetic limitation [23]. The detection limit for DA in the lower range region was found to be 1 × 10 −8 M and quantification limit was 3.3 × 10 −8 M. The detection limit and quantification limit was calculated by using the formulas, LOD = 3S/M and LOQ = 10S/M [24].…”