A pure protein is one that is free from any quantifiable amounts of impurities. Any purity determination is only as reliable as the analytical methods used, and factors such as the structural properties of the protein itself, the amount of protein available, the nature of potential contaminants in the sample, and the accuracy of the estimate required should always be considered when selecting the method of analysis.More information, please visit the website: http://www.creative-proteomics.com/Services/Purity-analysis-of-peptides-or-proteins.htm