The stability of the absorbance at 565 nm was determined by performing measurements every 5 min over a periodof 1h.The results demonstrated that there was no significant change in the absorbance value with time
The stability of the absorbance at 565 nm was determined byperforming measurements every 5 min over a periodof 1h.Theresults demonstrated that there was no significant change in theabsorbance value with time