Rapid Characterization of Tanshinone Extract Powder by Near Infrared Spectroscopy

Table 2

Experiment schedules of Salvia miltiorrhiza alcohol extraction ().

Run	: ethanol concentration/%	: ethanol volume/L	: decoction time/hour
1	90	5	1.75
2	90	5	3.00
3	80	4	0.50
4	80	4	3.00
5	90	4	1.75
6	90	6	1.75
7	100	6	0.50
8	80	6	3.00
9	100	5	1.75
10	90	5	1.75
11	100	4	0.50
12	90	5	1.75
13	80	5	1.75
14	100	4	3.00
15	100	6	3.00
16	80	6	0.50
17	90	5	1.75
18	90	5	0.50
19	90	5	1.75
20	90	5	1.75