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 5

Variance analysis of average weight, the chemical compounds, and grades.

		AVG	DF	SD	SE	𝑃
Grade	Average weight	51.7778	18	24.5124	5.6235	0.046
	Ferulic acid	−1.7034	18	1.4675	0.3367	0.94
	Senkyunolide A	−2.2619	18	1.3978	0.3209	0.985
	n-Butylphthalide	−2.1055	18	1.4026	0.3218	0.614
	Ligustilide	−0.03321	18	1.9209	0.4406	0.619
	Butylidenephthalide	−1.4973	18	1.5016	0.3445	0.811
Average weight	Ferulic acid	53.4812	18	24.6503	5.6551	0.621
	Senkyunolide A	54.0397	18	24.6324	5.6511	0.271
	n-Butylphthalide	53.8832	18	24.6305	5.6507	0.042
	Ligustilide	51.8110	18	25.0694	5.7513	0.221
	Butylidenephthalide	53.2751	18	24.8041	5.6904	0.181
Ferulic acid	Senkyunolide A	0.5585	18	0.4661	0.1069	0.010
	Ligustilide	−1.6702	18	1.1058	0.2537	0.000
	Butylidenephthalide	−0.2061	18	0.3458	0.0793	0.000
Senkyunolide A	Ligustilide	−2.2287	18	1.3804	0.3167	0.000
	Butylidenephthalide	−0.7647	18	0.5475	0.1256	0.001
Ligustilide	Butylidenephthalide	1.4641	18	0.8750	0.2007	0.000

𝑃<0.05, significant difference.