Table 1. Stability of adenine in culture medium.

Time (hour)	Concentration added (μg/mL)	Concentration Measured ($\left(\overline{x}\pm S\right)$, μg/mL)
0	100	95.21±4.45
	300	299.16±12.91
4	100	99.64±5.15
	300	288.38±10.97
24	100	94.01±7.42
	300	296.44±15.11
48	100	97.12±6.84
	300	287.58±10.15
72	100	95.93±4.09
	300	282.13±9.99