ECL Optimisation

Zhonglin Chai zchai at COBRA.PATH.MONASH.EDU.AU
Mon Oct 23 02:05:31 EST 1995

>do people put in azide in their primary ab? and will it not
>interfere with ECL?

Yes, I routinely do add Sodium Azide in the primary ab and re-use it for
several times without any problems (in library screening and Western). I
would think it essential to prevent bacterial (growth) contamination if you
have pre-absorbed your serum with E. coli. As azide inhibits HRP activity,
you have to wash your blots thoroughly before the secondary HRP conjugate
is added.

Hope this of help.

ZhongLin Chai, PhD

Department of Pathology and Immunology
Monash University Medical School
Alfred Hospital
Commercial Rd, Prahran, Victoria, AUSTRALIA
Telephone: (61 3) 9276 2698
           (61 3) 9388 1205 (home)
Fax:       (61 3) 9529 6484
email:     zchai at

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