How to lower background of silver staining

[Sebastian Bunka]

> Date:          23 Sep 93 17:29:43 GMT
> To:            "bionet.molbio.methds-reagnts mail newsgroup" 
<bionet-news at dl.ac.uk>
> From:          huangbx at SOL.CCS.DEAKIN.EDU.AU ("Huang Bixing")
> Reply-to:      huangbx at SOL.CCS.DEAKIN.EDU.AU ("Huang Bixing")
> Subject:       How to lower background of silver staining

> Greetings to all, 
> 
> Could anyone tell me how to reduce the background of silver 
staining in the 
> polyacrylamide gel? Which step or what regents is crutial for low 
silver 
> staining background?
> 
> Please reply to me at huangbx at deakin.EDU.AU or to the 
> network. Thank you in advance. 
> 
> With regards
> 
> Bixing Huang
> -----
> 
> School of Biological and Chemical Sciences, Deakin University, 
Geelong
> -----
> 
> 
Try Farmers reducer (should be available from good - semi 
professional- photoshops for B&W films; or mix by yourself: Dry 
mixture of 3g sodium thiosulfate, 1g Na-hydrogen carbonate and 6g 
K-ferricyanide; make final 0.5% solution).
After your last step wash gel 3x10 min in A. tridest.; soak gel in 
farmers reducer for 1-30 sec (be very careful - bands can disappear 
on prolonged incubation); wash gel 3x10 min in A. tridest.; dry.

SWB

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|Dr. Sebastian Bunka      Email: Sebastian.Bunka at vu-wien.ac.at     |
|Inst.f.Bakteriologie                                              |
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