Fig. 2.

UV scans to determine the effect of pH and ionic strength on GRFT (250 μg/mL). GRFT solutions in water, pH 4, pH 7, and pH 10 buffers were analyzed by UV spectroscopy to determine the formation of insoluble aggregates. a GRFT solutions prepared in low ionic strength buffers (50 mOsm/kg). b GRFT solutions prepared in high ionic strength buffers (500 mOsm/kg). c Absorbance values at 280, 320, and 350 nm. The trend lines largely overlap due to the similar absorbance of the different samples at each pH