Research Article
Determination of Antioxidant 264 in the Butyl Rubber Stopper and the Compatibility with Recombinant Potent Antitumor and Antivirus Protein Injection
Figure 1
HPLC chromatogram of the blank solvent (a), reference standard solution of antioxidant 264 (b), sample solution of the rubber stopper (c), and recombinant potent antitumor and antivirus protein injection for the test (d).
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