Concentration (ng mL-1) ARI CLO
Recoverya RSDa Recoverya RSDa
20 89.43 4.43 86.36 2.86
400 91.82 3.12 88.38 5.76
800 90.76 4.16 88.74 4.28
aAverage of three separate determinations
Table 3: Results of recovery of ARI and CLO in human plasma, by the proposed extraction procedure.