Selective and Accurate Determination Method of Propofol in Human Plasma by Mixed-Mode Cation Exchange Cartridge and GC-MS

Table 1

Intra- and interday precision and accuracy of propofol.

Concentration (ng/mL)	Intra-assay		Interassay
	Precision (CV%)	Accuracy (bias, %)	Precision (CV%)	Accuracy (bias, %)
25	5.4	5.3	11.6	11.7
500	4.0	−4.2	5.4	−5.8
5,000	3.7	−0.1	4.1	−1.2