Determination of Antioxidant 264 in the Butyl Rubber Stopper and the Compatibility with Recombinant Potent Antitumor and Antivirus Protein Injection

Table 2

Recovery of antioxidant 264 in recombinant potent antitumor and antivirus protein injection.

Sample	m added/μg	m found/μg	Recovery (%)	Average recovery (%)	RSD (%)
Antioxidant 264 (1)	320.24	337.11	105.27	102.19	2.23
	320.40	336.81	105.12
	320.16	337.11	105.29
Antioxidant 264 (2)	400.30	403.32	100.75
	400.50	402.71	100.55
	400.20	403.01	100.70
Antioxidant 264 (3)	480.36	483.49	100.65
	480.60	484.40	100.79
	480.24	483.19	100.61