Table 3.

Relative retention time (RRT) of 10 batches of placenta polypeptide injection.

Peak number	RRT
	1	2	3	4	5	6	7	8	9	10	RSD (%)
1	0.520	0.519	0.522	0.521	0.522	0.522	0.522	0.522	0.522	0.523	0.223
2	0.643	0.642	0.644	0.643	0.643	0.643	0.643	0.643	0.643	0.643	0.054
3	0.800	0.800	0.800	0.800	0.801	0.801	0.801	0.801	0.801	0.801	0.039
4	0.896	0.897	0.897	0.897	0.897	0.897	0.897	0.897	0.897	0.897	0.014
5 (S)	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	0
6	1.193	1.192	1.193	1.194	1.193	1.194	1.192	1.194	1.194	1.193	0.063
7	2.048	2.049	2.049	2.049	2.047	2.049	2.045	2.048	2.052	2.047	0.098
8	2.552	2.555	2.572	2.576	2.576	2.579	2.580	2.582	2.585	2.589	0.381
9	2.860	2.865	2.884	2.888	2.889	2.892	2.894	2.896	2.900	2.904	0.398