APS & TEMED in acid gels

[J C Ford]

If you can the amounts of APS and TEMED, you will change the kinetics of 
gelation (great, that's what you want).  You will also change the porosity of 
the gel - the relative amount of cross-linking.  You don't want that.  If 
you're doing highly precise work, you'll see a change in the migration 
pattern.