Simultaneous Determination of 32 Pyrrolizidine Alkaloids in Two Traditional Chinese Medicine Preparations by UPLC-MS/MS

Table 6

Accuracy, precision, stability, and LOQ of CDDP.

Compound	Accuracy (average ± RSD%)	Precision (average ± RSD%)	Stability (RSD%)	LOQ (μg/kg)
Em	81.5 ± 12.0	90.0 ± 13.7	19.6	0.7
Er	85.0 ± 7.8	35.4 ± 28.3	2.0	1.5
Eu	97.7 ± 9.9	97.5 ± 5.9	8.0	0.6
He	97.1 ± 4.0	99.8 ± 2.7	4.8	0.6
Ic	94.4 ± 4.1	94.9 ± 3.1	4.3	0.7
Im	102.5 ± 8.7	102.2 ± 8.8	9.7	0.5
Jb	71.8 ± 2.7	68.9 ± 4.1	1.8	1.5
Lc	90.5 ± 12.0	99.5 ± 15.5	12.6	0.6
Ly	94.9 ± 7.3	92.9 ± 5.1	5.4	0.4
Mc	89.1 ± 5.8	90.0 ± 7.2	5.9	1.1
Re	82.0 ± 6.4	84.6 ± 4.3	7.2	3.8
Sk	95.6 ± 17.1	110.7 ± 8.1	23.9	2.0
Sn	87.0 ± 6.6	89.1 ± 3.6	4.5	3.5
Sp	74.6 ± 6.9	74.6 ± 3.4	1.6	1.2
Sv	88.4 ± 10.1	85.2 ± 3.5	2.1	2.1
Td	88.4 ± 6.6	89.1 ± 5.9	3.9	1.5
7-Ly	76.4 ± 6.8	75.7 ± 5.5	4.5	0.8
7-Im	76.2 ± 4.6	77.4 ± 5.3	8.5	0.8
EmNO	94.3 ± 11.0	86.5 ± 13.9	4.8	3.9
ErNO	91.4 ± 6.9	53.2 ± 26.9	6.9	1.3
EuNO	98.5 ± 10.5	102.7 ± 3.2	6.6	1.2
HeNO	103.6 ± 2.8	105.3 ± 2.1	2.6	1.5
IcNO	104.5 ± 2.0	103.6 ± 2.2	2.3	0.5
ImNO	104.3 ± 10.8	107.3 ± 9.5	2.9	0.6
JbNO	86.2 ± 10.5	88.8 ± 7.9	6.8	1.3
LcNO	99.2 ± 10.5	89.4 ± 13.4	1.8	0.3
LyNO	102.0 ± 5.8	98.0 ± 1.9	2.7	1.8
McNO	106.0 ± 8.7	104.7 ± 7.9	7.8	7.7
ReNO	100.5 ± 6.1	101.4 ± 4.7	3.1	3.2
SnNO	109.8 ± 6.0	112.7 ± 4.3	1.7	0.7
SpNO	80.5 ± 6.1	68.5 ± 19.3	1.2	1.5
SvNO	112.0 ± 4.7	113.3 ± 3.0	3.5	0.3