Analysis of the Correlation between Commodity Grade and Quality of Angelica sinensis by Determination of Active Compounds Using Ultraperformance Liquid Chromatography Coupled with Chemometrics

Table 4

The correlation among the main chemical compounds, weight, and grades of A. sinensis.

	Grade	Average weight	Ferulic acid	Senkyunolide	n-Butylphthalide	Ligustilide	Butylidenephthalide
Grade	1.000
Average weight	−0.603**	1.000
Ferulic acid	−0.089	0.01	1.000
Senkyunolide A	−0.501*	−0.031	0.682**	1.000
n-Butylphthalide	0.019	−0.361	−0.143	0.015	1.000
Ligustilide	0.088	−0.012	0.863**	0.568*	0.903	1.000
Butylidenephthalide	−0.029	−0.022	0.805**	0.582**	0.616	0.895**	1.000

^∗∗𝑃<0.01 (bilateral). The correlation is significant.
^∗𝑃<0.05. The correlation is significant.