A Metabonomics Investigation into the Therapeutic Effects of BuChang NaoXinTong Capsules on Reversing the Amino Acid-Protein Interaction Network of Cerebral Ischemia

Table 3

Precisions, repeatability, accuracy, and stability data for the ten AAs in CSF.

Amino acids	Precision		Repeatability RSD% ()	Accuracy		Stability
	Intraday RSD% ()	Interday RSD% ()		Average recovery ()	Recovery RSD%	Three freeze-thaw stability RSD% ()	Short-term stability RSD% ()
Tryptophan	2.07	1.98	4.16	81.27	2.70	2.19	4.16
Tyrosine	1.95	2.70	0.59	80.30	5.34	2.38	0.59
Phenylalanine	1.87	2.04	4.42	80.47	3.46	1.12	4.42
Glutamate	2.85	1.78	3.14	104.51	2.07	1.15	3.14
Glutamine	2.30	2.44	3.93	115.29	2.24	1.37	3.93
Isoleucine	2.80	2.39	7.99	113.33	2.63	1.81	1.79
Leucine	2.99	2.99	5.75	88.64	5.55	1.18	4.75
Taurine	0.87	2.45	3.96	87.25	2.18	1.59	3.96
Valine	2.47	1.75	7.86	94.77	3.17	2.19	5.86
Alanine	2.91	2.09	2.00	90.78	7.19	1.75	2.00