There is very little need for much text in this post. This picture says it all. The column on the far right shows my crude mix of protein before purification, the far left is the protein ladder (for reference), and the big blobs that you can see in between are samples of my purified protein. It’s quite a difference. This is how I qualitatively show the purity of my newly purified samples.
This technique was carried out on the same day as quantification of the samples to avoid excessive freeze-thaw cycles.