HABA/Avidin Storage

[BL]

I currently use the HABA/Avidin reagent from Sigma to quantify biotinylated
samples. However, I cannot usually use up the 10 reactions after
reconstitution within a few weeks so a lot of it is wasted.

Does anyone know if the reconstituted solution will stay good in the
freezer?

Alternatively, is anyone aware of, e.g. single-reaction vials of HABA/Avidin
from a company?

Thanks for any input.