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. 2018 May 23;26(7):1060–1067. doi: 10.1016/j.jsps.2018.05.015

Table 3.

Recovery as accuracy studies of the proposed HPTLC Method (n = 6).

Percent (%) of ursolic acid, β-sitosterol and lupeol added to analyte Theoretical concentration of ursolic acid, β-sitosterol and lupeol (ng/μL) Ursolic acid
β-sitosterol
Lupeol
Concentration found (ng/μL) ± SD % RSD % Recovery Concentration found (ng/μL) ± SD % RSD % Recovery Concentration found (ng/μL) ± SD % RSD % Recovery
0 200 198.18 ± 2.16 1.089 99.09 197.14 ± 2.18 1.105 98.57 199.03 ± 2.69 1.351 99.51
50 300 298.02 ± 3.57 1.197 99.34 297.8 ± 4.19 1.407 99.26 299.27 ± 4.18 1.396 99.75
100 400 400.52 ± 4.89 1.220 100.13 398.53 ± 5.81 1.457 99.63 396.07 ± 6.09 1.537 99.01
150 500 498.79 ± 6.19 1.240 99.75 492.03 ± 7.57 1.538 98.40 498.58 ± 7.79 1.562 99.71