Species Classification and Quality Assessment of Cangzhu (Atractylodis Rhizoma) by High-Performance Liquid Chromatography and Chemometric Methods

Table 2

Orthogonal experimental design test results of the ultrasonic-assisted extraction process.

No.	A	B	C	D	Atractylodin (%)
1	1	1	1	1	0.1077
2	1	2	2	2	0.1519
3	1	3	3	3	0.1328
4	2	1	2	3	0.1418
5	2	2	3	1	0.1485
6	2	3	1	2	0.1205
7	3	1	3	2	0.1330
8	3	2	1	3	0.1365
9	3	3	2	1	0.1363
𝐾1	0.1308	0.1275	0.1216	0.1308
𝐾2	0.1369	0.1456	0.1433	0.1351
𝐾3	0.1353	0.1299	0.1381	0.1370
R	0.0061	0.0181	0.0217	0.0062

Note: 𝐾_𝑖 is obtained by adding any number of columns corresponding to 𝑖 factor. R is the difference between the maximum value and the minimum value of 𝐾_𝑖 of any columns.