Journal: Analytical Chemistry
Article Title: Decoupling Protein Concentration and Aggregate Content Using Diffusion and Water NMR
doi: 10.1021/acs.analchem.3c05875
Figure Lengend Snippet: Plots showing the effect of aggregate percentage on R 2 ( 1 H 2 O) for BSA (A) and mAb (B) solutions over a range of different concentrations. The solid lines represent linear regression fits to individual sample concentrations (as determined in MATLAB 2022a [MathWorks, US]), and the blue-shaded areas represent 95% confidence intervals calculated from average of the standard error of all data points for each protein. The 95% confidence intervals are multiplied by a factor of 5 for visibility. Sample errors were determined by taking the standard error of the arithmetic mean of three sample measurements; values can be found in the Tables S2 and S3 . Error bars are excluded for clarity where the errors are smaller than the symbols used.
Article Snippet: To calculate the aggregate percentage for each mAb sample, the built-in Curve Fitting Tool in MATLAB 2022a (MathWorks, US) was used to generate a Gaussian fit for the protein peaks with multiple components used if required.
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