GFP antibody

[dinakar bhattramakki]

I have been using GFP polyclonal antibody to detect GFP expressed in 
transgenic Arabidopsis. But it is very difficult to get a single nice 
band specific for GFP protein. Some one had suggested a method of 
purification of this polyclonal earlier in the net. 
Could anyone forward that message? (I do not intend to buy monoclonal 
from Clontech at this time)
Thanks in advance.
- Dinakar