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

Table 2

Calibration curves data of nine bioactive compounds in samples.

Analytes	Calibration curves	R^2	Linear range (μg/mL)
PTA	y = 11.053x + 1.2873	0.9997	0.528–6.60
PTAL	y = 7.327x + 0.2632	0.9993	0.272–3.40
CA	y = 4.724x + 0.1380	0.9997	0.732–9.15
RA	y = 362.1x − 11.843	0.9996	7.52–94.0
SAB	y = 24.02x + 0.3742	0.9998	0.179–2.24
DI	y = 26.55x − 1.2230	0.9995	1.30–16.2
CTS	y = 6.866x + 0.2087	0.9996	2.68–33.5
TSI	y = 26.765x − 0.3373	0.9991	1.47–18.4
TSIIA	y = 72.333x + 2.7490	0.9994	1.29–16.12