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Can Sigma-Aldrich produce exactly the same molecular weight polyamino acids from lot to lot?

April 26, 2017acids Molecular polyamino Sigma-Aldrich weight

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Can Sigma-Aldrich produce exactly the same molecular weight polyamino acids from lot to lot?

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No. As with any synthetic polymerization method, there is always lot-to-lot variation in molecular weight range. However, Sigma-Aldrich and the customer can set an acceptable molecular weight range and develop a process that gives lot-to-lot reproducibility within the range.