Journal of Analytical Methods in Chemistry / 2016 / Article / Tab 1 / Research Article
Comparative Study of Novel Ratio Spectra and Isoabsorptive Point Based Spectrophotometric Methods: Application on a Binary Mixture of Ascorbic Acid and Rutin Table 1 Determination of AA and RU in laboratory prepared mixtures by the proposed spectrophotometric methods.
Concentration Direct A_Sum Iso_RD A_Sum Iso_RD Iso_P RD DDMCN RS
(µ g/mL) AA RU RU RU RU AA AA AA AA AA AA AA 8 4 104.69 99.40 100.13 101.22 101.06 91.20 106.37 102.40 104.64 102.84 8 8 105.01 99.50 97.78 99.24 99.75 98.71 104.74 103.43 103.86 103.47 12 8 99.18 100.48 101.62 99.72 98.49 98.48 101.91 100.21 99.99 101.32 8 12 103.75 98.67 99.36 98.64 99.75 96.20 101.58 100.12 101.00 100.49 12 12 99.60 99.12 102.50 98.95 98.41 96.93 101.36 99.91 100.61 100.75 16 12 98.63 100.16 97.77 101.26 100.75 91.02 99.04 98.02 99.58 98.09 20 12 99.94 99.35 102.37 101.20 101.79 90.86 99.39 98.48 100.21 98.68 8 16 106.27 98.91 98.53 99.10 95.94 97.47 103.69 102.69 103.84 102.56 12 16 101.07 101.57 96.02 98.80 100.11 96.03 102.66 102.07 103.03 101.77 20 16 100.31 99.06 97.19 99.92 97.34 96.12 103.34 102.77 104.19 102.93 8 20 106.58 99.55 99.12 99.35 102.21 96.33 101.45 101.15 101.51 100.54 20 20 99.18 101.56 99.72 100.35 100.13 96.94 103.40 102.56 104.00 102.76
Mean 102.02 99.78 99.34 99.81 99.65 95.52 102.41 101.15 102.21 101.35
SD 2.88 0.97 2.05 0.98 1.83 2.73 2.00 1.71 1.81 1.64
RSD% 2.82 1.21 2.06 0.98 1.84 2.86 1.95 1.69 1.77 1.62
Average of four determinations.