SDS - PAGE can determine the purity of the separated proteins. If only one band appears in the sample protein, it means that the protein obtained is pure.
SDS - The page can indicate that the isolated protein is pure. If a single band appears in the sample protein, it indicates that the obtained protein is pure.
SDS-PAGE can be used to identify whether the isolated protein is pure, and if there is a single band in the sample protein, it indicates whether the obtained protein is pure.