Simultaneous Quantitative Determination of Six Caffeoylquinic Acids in Matricaria chamomilla L. with High-Performance Liquid Chromatography

Table 4

Recoveries of six CAs as determined by the standard addition method (n = 6).

Name	Sample weight (g)	Original (mg)	Spiked (mg)	Found (mg)	Recovery^a (%)	Average recovery (%)	RSD (%)
NCA	0.251	0.022	0.021	0.043	100.70	100.74	1.18
	0.250	0.021	0.021	0.043	99.58
	0.251	0.022	0.021	0.044	102.95
	0.252	0.022	0.021	0.043	100.48
	0.251	0.022	0.021	0.043	100.87
	0.250	0.021	0.021	0.043	99.85
CCA	0.251	0.012	0.011	0.023	98.26	100.92	2.83
	0.250	0.012	0.011	0.023	96.40
	0.251	0.012	0.011	0.024	102.25
	0.252	0.012	0.011	0.024	102.49
	0.251	0.012	0.011	0.024	103.05
	0.250	0.012	0.011	0.024	103.08
CA	0.251	0.204	0.204	0.410	100.84	100.77	1.09
	0.250	0.204	0.204	0.408	100.10
	0.251	0.205	0.204	0.415	102.94
	0.252	0.205	0.204	0.409	100.28
	0.251	0.205	0.204	0.409	100.44
	0.250	0.204	0.204	0.407	100.05
ICA	0.251	0.410	0.401	0.815	100.99	101.52	1.11
	0.250	0.409	0.401	0.813	100.76
	0.251	0.411	0.401	0.826	103.57
	0.252	0.411	0.401	0.815	100.63
	0.251	0.411	0.401	0.820	102.08
ICB	0.251	0.128	0.119	0.248	101.07	101.53	0.94
	0.250	0.128	0.119	0.248	101.34
	0.251	0.128	0.119	0.251	103.17
	0.252	0.128	0.119	0.249	101.37
	0.251	0.128	0.119	0.249	101.92
	0.250	0.127	0.119	0.246	100.32
ICC	0.251	0.188	0.175	0.366	101.89	101.55	1.06
	0.250	0.188	0.175	0.365	101.52
	0.251	0.189	0.175	0.369	103.37
	0.252	0.189	0.175	0.366	101.59
	0.251	0.188	0.175	0.364	100.68
	0.250	0.187	0.175	0.362	100.26

Note.^aRecovery (%) = [(found−original)/spiked] × 100; RSD: relative standard deviation.