Research Article

Simultaneous Evaluation of the Influence of Panax ginseng on the Pharmacokinetics of Three Diester Alkaloids after Oral Administration of Aconiti Lateralis Radix in Rats Using UHPLC/QQQ-MS/MS

Table 5

(a) The stability at 4°C and room temperature of detected methods.

NameQC conc.4°C temperature stability (24 h)Room temperature stability (24 h)
(ng/mL)Concentration (ng/mL)RSD (%)Accuracy (%)Concentration (ng/mL)RSD (%)Accuracy (%)

Aconitine0.400.40 ± 0.012.1699.65 ± 2.160.40 ± 0.012.51100.49 ± 2.52
4.003.96 ± 0.410.1098.98 ± 9.993.85 ± 0.133.3896.29 ± 3.26
8.008.13 ± 0.11.27101.57 ± 1.297.81 ± 0.364.6497.66 ± 4.54

Mesaconitine0.400.40 ± 0.038.71100.28 ± 8.730.39 ± 0.037.2196.34 ± 6.95
4.003.88 ± 0.379.4797.02 ± 9.183.75 ± 0.112.9593.68 ± 2.77
8.007.95 ± 0.374.5999.43 ± 4.578.06 ± 0.384.74100.72 ± 4.78

Hypaconitine0.400.39 ± 0.012.4197.44 ± 2.350.40 ± 0.012.51100.49 ± 2.52
4.004.20 ± 0.225.23104.96 ± 5.493.95 ± 0.174.3598.72 ± 4.30
8.008.09 ± 0.394.76101.13 ± 4.828.05 ± 0.293.58100.64 ± 3.60

(b) The stability at freeze-thaw of detected methods.

NameQC conc.Freeze-thaw
(ng/mL)Concentration (ng/mL)RSD (%)Accuracy (%)

Aconitine0.400.40 ± 0.012.0699.71 ± 2.06
4.004.00 ± 0.256.2499.91 ± 6.23
8.008.02 ± 0.151.87100.22 ± 1.87

Mesaconitine0.400.38 ± 0.037.6995.09 ± 7.31
4.004.01 ± 0.368.89100.37 ± 8.92
8.007.97 ± 0.273.3699.59 ± 3.35

Hypaconitine0.400.40 ± 0.012.0699.71 ± 2.06
4.004.01 ± 0.246.01100.26 ± 6.03
8.008.19 ± 0.263.12102.33 ± 3.19