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Delution of detection reagent?


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#1 mushu

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Posted 07 February 2005 - 06:00 AM

Hi there!

I'm using the 'Chemiluminescent Peroxidase Substrate for Western Blotting' by Sigma for detection of my protein bands. Only problem is that this substrate gives *such* a strong signal. Has anyone ever 'diluted' this substrate and if so ... in what can I dilute it to get less strong signals?

Thanks,

m.

#2 jadefalcon

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Posted 07 February 2005 - 07:25 AM

hi there!

I'd try to lower the used antibody concentrations, not to dillute the ECL-Substrate...

Otherwise you can try to add the reagent and put the film on the membrane sometimes later. Most ECL-reagents will produce a stable signal over 5-10 minutes that then decreases....


mike
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#3 serglom

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Posted 07 February 2005 - 07:49 AM

You can dilute ECL reagents in Deionized water. Try diferents dilutions but mantain the correct relation between the reagents.




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