Quantitative Analysis of Cepharanthine in Plasma Based on Semiautomatic Microextraction by Packed Sorbent Combined with Liquid Chromatography

Table 1

Extraction recovery, precision, and accuracy of the method (𝑛=7).

Theoretical nominal concentration (ng·mL^−1)	Extraction yield (%)	Accuracy (%)	Precision (%)
125	58.3	99.1	4.1
300	56.4	102	3.8
1500	58.8	99.0	4.2