Quantitative Analysis of Panax ginseng by FT-NIR Spectroscopy

Table 1

The linear regression equations of nine ginsenosides.

Ginsenoside	Regression equation	Linear ranges/μg	𝑅^2
Rg1	Y = 383524X − 65359	0.456–2.280	0.9997
Rb1	Y = 3080694X − 2960	0.516–2.580	0.9999
Re	Y = 375112X − 76321	0.382–1.910	0.9994
Rf	Y = 407560X − 43377	0.174–0.870	0.9999
Rc	Y = 290956X − 62647	0.342–1.710	0.9999
Rb2	Y = 288739X − 46577	0.253–1.270	0.9998
Rg2	Y = 469440X − 23253	0.034–0.170	0.9998
Rb3	Y = 419332X − 14938	0.029–0.150	0.9998
Rd	Y = 650313X − 24730	0.068–0.340	0.9993