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Simultaneous quantification of salvianolic acid B and tanshinone IIA of salvia tropolone tablets by UPLC-MRM-MS/MS for pharmacokinetic studies

Li J. R., Li D. X., Li L., Deng W. L., Ding L. S., Xu H. X., Zhou Y.

Acta Chromatographica

2014

Vol. 26, no. 4

711--725

A rapid and sensitive ultraperformance liquid chromatography-multiple reaction monitoring-multi-stage/mass spectrometry (UPLC-MRM-MS/MS) method has been developed for simultaneous quantification of salvianolic acid B and tanshinone IIA of salvia tropolone tablets in dog plasma. This was achieved by performing quantification using the MRM acquisition with two channels of MRM-MS/MS and MS full scan for more accuracy qualitative results, and the fragmentation transitions of m/z 295→249, 191 for tanshinone IIA and m/z 297→279, 251 for IS in positive mode, m/z 717→519, 321 for salvianolic acid B and m/z 295→267, 239 for IS in negative mode were selected. The UPLC separation was achieved within 3 min in a single UPLC run. Linear calibration curves were obtained over the concentration range of 10 pg/mL-1 ng/mL for tanshinone IIA and 100 pg/mL-1 for salvianolic acid B. Lower limit of quantitation (LLOQ) was 10 pg/mL and 100 pg/mL for tanshinone IIA and salvianolic acid B, respectively. The inter-day and intra-day precision (relative standard deviation, RSD) in all samples were less than 8.21%, and the recoveries were over 85.9% for both tanshinone IIA and salvianolic acid B. The two channels of MRM with MS full scan approach could provide both qualitative and quantitative results without the need for repetitive analyses and resulted in the reduction of further confirmation experiments and analytical time. The pharmacokinetic study of the two active components of salvia tropolone tablets following oral gavage administration of dogs was thus explored with this method.

Structure, Thermal Stability and Water Solubility of (Tanshinone II-A)/((beta-Cyclodextrin) Inclusions Complex

Yang Sh., Hu M., Shen Y., Ma X.

Polish Journal of Chemistry

2004

Vol. 78 / nr 1

53-61

The structure of the inclusion complex of tanshinone II-A and _-cyclodextrin formed under microwave irradiation was studied by the UV, IR, and NMR spectroscopy. The association constant of the complex in water is 210 M-1, as determined from the double reciprocal curve by UV spectroscopy. The enhanced water solubility of the complex was found. Thermal studies proved the increased thermal stability of the inclusion complex.