表 2.

日内和日间精密度试验结果(n=6)

Compound	Intra-day precision			Inter-day precision
	Content/ (μg/L)	RSD/ %		Content/ (μg/L)	RSD/ %
Shikonin	29.35	2.17		38.89	3.70
Acetylshikonin	150.29	0.19		197.06	1.47
β-Acetoxyisovaleryl akanin	120.41	0.35		160.54	3.41
Isobutyryl shikonin	186.86	3.81		231.60	4.49
β,β-Dimethylacryl shikonin	148.28	1.14		193.46	3.27
2-Methylbutyryl	293.96	2.01		393.40	2.65