Propylene glycol as an activator for phosphoenolpyruvate carboxylase

摘要

The present invention provides an improved method and reagent for measuring the total carbon dioxide content in a sample of body fluid. The improvement comprises adding a sufficient amount of propylene glycol to the PEPC enzyme reagent to increase the activity of PEPC and maintaining the enzyme reagent at a substantially constant pH of about 6.0 to 7.0.