reference framework biochem.

[landfish]

To support this intracellular quenching study, we performed control experiments using sucrose solutions to examine the effects of a viscosity change on the quenching rate constant and thereby establish a reference framework for data recorded from a cell.
Помогите пожалуйста перевести "reference framework". Спасибо!

[delta]

Эталон?
Эталонный формат?

[PicaPica]

..., тем самым определив систему отсчета для...