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Table 4 The results of precision of seven compounds in Danmu preparations

From: Chromatographic fingerprints analysis and determination of seven components in Danmu preparations by HPLC–DAD/QTOF-MS

CompoundsIntra-day (RSD%, n = 5)Inter-day (RSD%, n = 6)
LowMiddleHighLowMiddleHigh
Protocatechuic acid0.670.340.701.620.141.23
Neochlorogenic acid1.041.280.781.541.770.99
Cryptochlorogenic acid1.700.660.411.250.430.90
Chlorogenic acid1.231.420.571.081.110.52
Sweroside1.390.270.641.390.161.37
Strictosamide1.170.180.581.480.161.00
Vincosamide1.910.440.501.360.511.09