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. 2020 Mar 4;28(4):487–494. doi: 10.1016/j.jsps.2020.02.011

Table 2.

Accuracy of the HPTLC method (n = 6) for Protopine (mean ± SD).

% Of standard spiked to the sample Theoretical content (ng) Amount of drug recovered ng ± SD % of drug recovered % RSD
Protopine
0 2500 2539.35 ± 19.24 101.57 0.75
50 3750 3746.03 ± 24.18 99.89 0.64
100 5000 5106.14 ± 98.66 102.12 1.93
150 6250 6172.22 ± 65.99 98.75 1.06

RSD: Regressed Standard Deviation.