TABLE 5.

Stability of the UHPLC-MS method determined using QC samples.

No.	t R/min	RSD (%)	RSD of relative peak areas/%	m/z	Ion	RSD (%)
1	1.28	1.1405	19.43	215.0398	[M−H]−	2.94 × 10–5
2	1.60	1.1037	25.06	132.0946	[M+H]+	3.09 × 10–5
3	6.63	0.3424	12.84	723.5102	[M−H]−	1.62 × 10–5
4	11.21	0.5977	11.86	274.2665	[M+H]+	1.88 × 10–5
5	16.74	0.3019	3.11	520.3325	[M+H]+	2.55 × 10–5
6	16.87	0.3404	9.27	588.3383	[M−H]−	1.78 × 10–5
7	17.17	0.3313	7.57	496.3324	[M+H]+	2.36 × 10–5
8	17.79	0.2863	8.00	540.3384	[M−H]−	2.16 × 10–5
9	18.75	0.2759	6.87	522.3482	[M+H]+	3.30 × 10–5
10	21.35	0.3165	5.54	524.3639	[M+H]+	2.23 × 10–5