Simultaneous Determination of Four Ingredients in Plantago Depressa by Single Marker

Table 7

Influence of different flow rates on relative correction factors.

Flow rates (mL/min)	Relative correction factor
	Protocatechuic acid	Catechin	Luteolin
0.8	1.2105	0.8723	1.6337
0.9	1.1908	0.8604	1.5986
1.0	1.2041	0.8655	1.6158
1.1	1.2286	0.8902	1.6339
1.2	1.1874	0.8544	1.5771
Mean	1.2078	0.8720	1.6161
RSD/%	1.59	1.83	1.09