Discrimination of Salvia miltiorrhiza Bunge from Different Geographical Locations Employing High-Performance Liquid Chromatography, Near-Infrared Fingerprinting Combined with Chemometrics

Table 3

Precision, stability, repeatability, and recoveries of the nine bioactive compounds' relative peak area in samples (n = 6).

Analytes	Precision (relative standard deviation, RSD, %)		Repeatability (RSD, %)	Robustness (RSD, %)	Accuracy (n = 6)
	Intraday (n = 6)	Interday (n = 6)			Mean	RSD%
PTA	1.92	2.12	1.32	1.54	91.21	2.71
PTAL	1.15	1.23	0.86	1.76	93.14	2.13
CA	0.85	1.01	1.14	2.62	94.01	1.94
RA	2.12	2.21	1.53	2.38	96.52	1.62
SAB	1.57	1.62	2.09	1.81	97.68	2.32
DI	2.52	2.49	2.35	0.97	99.05	1.89
CTS	0.89	1.02	1.91	1.27	98.50	2.98
TSI	2.71	2.68	1.57	0.68	99.21	1.45
TSIIA	2.63	2.71	1.75	2.11	94.67	1.22