I've used SIGMA Dye Resin Test Kit (Kit No. RDL-9). Thay said
dye-chromatography may perform as a substrate analog or through ion exchange.
However, I don't know the theory of it. We can purify some proteins from fish head
kidney via blue dye columns. Good luck!
Hon-Ren Huang, R3205003 at CC.NTU.EDU.TW
Institute of Zoology
National Taiwan University