中药人参皂苷的UHPLC-MS/MS研究

[ACE UltraCore SuperC18色谱柱]中药人参皂苷的UHPLC-MS/MS研究

Conditions

Column: ACE UltraCore 2.5 SuperC18
Dimensions: 150 x 3.0 mm
Part Number: CORE-25A-1503U
Mobile Phase: 

A: 0.1% formic acid in H2O
B: 0.1% formic acid in MeCN
Gradient:

Flow Rate: 0.4 mL/min
Injection: 2 μL
Temperature: 45 °C
Detection: AB SCIEX 5500 Qtrap MS ESI in negative ion mode
Source temperature: 450 °C
Sprayer voltage: -4500 V
Stepwise MRM mode for[M + HCOO]- > [M – H]- ion transitions Mass range 501 – 1250 u (step size 2 u)
Analytes
1. Ginsenoside Re(m/z 991 945)
2. Ginsenoside Rg1(m/z 845 799)
3. Ginsenoside Rf(m/z 845 799)
4. Ginsenoside Rb1(m/z 1153 1107)
5. Ginsenoside Rc(m/z 1123 1077)
6. Ginsenoside Ro(m/z 1001 955)
7. Ginsenoside Rb2(m/z 1123 1077)
8. Ginsenoside Rg2(m/z 829 783)
9. Ginsenoside Rh1(m/z 683 637)
10. Ginsenoside Rd(m/z 991 945)
11. Ginsenoside F1(m/z 683 637)
12. Ginsenoside F2(m/z 829 783)
13. Ginsenoside Rg3(m/z 829 783)