Simple Analytical Method on the Determination of Dexamethasone in Herbal Medicine

Table 2

Comparison of analysis of herbal samples with UV-Vis spectrophotometry and HPLC (n = 3).

Samples	Concentration		Deviation
	UV-Vis spectrophotometry	HPLC
Standard	19.88 ± 0.42	19.88 ± 0.49	0.00 ± 0.07
Positive control	31.03 ± 0.81	31.07 ± 0.83	0.04 ± 0.02
Sample 2	7.44 ± 0.02	7.45 ± 0.02	0.01 ± 0.00
Sample 7	12.23 ± 0.31	12.48 ± 0.38	0.25 ± 0.07
Sample 8	11.11 ± 0.58	11.15 ± 0.52	0.04 ± 0.06
Sample 11	16.65 ± 0.18	16.76 ± 0.15	0.11 ± 0.03
Sample 13	5.68 ± 0.10	5.72 ± 0.04	0.04 ± 0.06
Sample 15	21.61 ± 0.40	21.62 ± 0.37	0.01 ± 0.03