What are the important aspects of purity for analysis of protein samples?
For analysis of intact proteins, it is especially critical that the protein sample does not contain any amount of detergents or polymers. For protein ID and analysis of digests of proteins in solution, it is important that protein sample not contain detergents, polymers, and has not been exposed to trypsin protease inhibitors (such as AEBSF), or other derivatizing reagents. (see Sample Submission and Guidelines).
