Skip to main content
. 2015 Jul 22;20(7):13281–13295. doi: 10.3390/molecules200713281

Table 4.

Precision studies of chlorogenic acid and caffeic acid analysis for the determination in the leaf extract of A. senticosus.

Parameters Chlorogenic Acid (mg/dry weight g) Caffeic Acid (mg/dry weight g)
Mean ± SD RSD (%) Mean ± SD RSD (%)
Inter-day 15.15 ± 0.13 0.87 3.32 ± 0.05 1.39
Intra-day 15.56 ± 0.26 1.70 3.43 ± 0.05 1.47

Results are expressed as the mean ± standard deviation (SD) from at least three independent experiments performed in triplicate. RSD, Relative standard deviation. Inter-day, One time analysis of chlorogenic acid and caffeic acid per day for 3 days. Intra-day, Three times analysis per day.