Analysis of glycan ratio of Chinese hamster ovary cell-cetuximab antigen-binding segment via rapid enzyme digestion with endo-&amp;lt;italic&amp;gt;&amp;beta;&amp;lt;/italic&amp;gt;-&amp;lt;italic&amp;gt;N&amp;lt;/italic&amp;gt;-acetylglucosaminidase F
Sepu/Chinese journal of chromatography