Determination of Scopolamine Distribution in Plasma and Brain by LC-MS/MS in Rats

Table 5

Refrigeration stability.

Sample	Nominal conc. (ng/mL)	Refrigerated for 24 h (4°C)		Refrigerated for 48 h (4°C)
		Accuracy (%, RE)	Precision (%, RSD)	Accuracy (%, RE)	Precision (%, RSD)
Plasma	5	106.72	3.81	109.36	5.32
	1875	108.41	2.53	114.18	8.61
Brain homogenate	5	93.93	4.05	106.84	4.78
	1875	111.58	1.58	91.25	11.20