Table 1.

The slopes of the calibration lines, the coefficients of determination, and the limits of detection for each calibration line.

	Slope	R2	LOD (μM)
100% PBS	−0.024	0.99	0.35
50% DES-PBS	−0.025	0.99	0.47
75% DES-PBS	−0.013	0.95	5.66
100% DES	−0.005	0.98	6.46