Staining SDS-PAGE gels without fixing proteins?

[GDWX]

In article <3668uc$g7e at info.curtin.edu.au>, COZZIE
<icostant at info.curtin.edu.au> writes:

You can use 0.3 M CuCl2 to visualize bands without fixing them. Refer to
*Antibodies* by Harlow and Lane pg 65 for a protocol or Lee et al. Analyt.
Biochem. 166: 308-312 (1987)