Determination of Drug to Antibody Ratio
Using a TSKgel Butyl-NPR Column

Republished with permission of Genentech, Inc., from Analytical methods for physicochemical characterization of antibody drug conjugates, Wakankar A, Chen Y, Gokarn Y, Jacobson FS., 3, 2011; permission conveyed through Copyright Clearance Center, Inc.
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Analysis of Monclonal Antibody and Aggregates Using a TSKgel Butyl-NPR column

Column: |
TSKgel Butyl-NPR, 2.5 μm,
4.6 mm ID × 3.5 cm
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Mobile phase: |
A: 3 mol/L NaCl
B: H2O
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Gradient: |
0-100% B in 10 min
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Flow rate: |
1.0 mL/min |
Detection: |
flourescence; Ex: 280 nm, Em: 348 nm
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Injection vol.: |
5 μg
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Sample: |
lgG1
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