Table 2 Calibration curves, LODs, LOQs, and the detected ions of the five marker compounds

1

1.00?-?500.00

y?=?15003.57x – 8421.59

1.0000

0.26

0.87

[M?-?H]^-

2

5.00?-?500.00

y?=?3944.65x – 9262.82

0.9995

0.60

2.00

[M?-?H]^-

3

5.00?-?500.00

y?=?1979.05x?+?4406.77

0.9999

2.44

8.13

[M?-?H]^-

4

1.00?-?500.00

y?=?7952.91x – 4715.75

1.0000

0.52

1.72

[M?-?H]^-

5

5.00?-?500.00

y?=?5737.29x – 3255.18

1.0000

0.48

1.59

[M?+?H]⁺