Determination of hydroxysafflor yellow A in human plasma by LC-MS/MS analysis
10.3969/j.issn.1001-1978.2014.10.016
- VernacularTitle:LC-MS/MS法测定人血浆中羟基红花黄色素A的浓度
- Author:
Changyin LI
;
Jihong CHU
;
Jun ZHANG
;
Yuxin ZANG
;
Guoliang DAI
;
Jiandong ZOU
;
Wenzheng JU
- Publication Type:Journal Article
- Keywords:
hydroxysafflor yellow A;
LC-MS/MS;
hu-man plasma;
plasma concentration;
pharmacokinetics;
SPE extraction;
multi-reaction monitoring mode
- From:
Chinese Pharmacological Bulletin
2014;(10):1402-1407
- CountryChina
- Language:Chinese
-
Abstract:
Aim To establish a LC-MS/MS method for the determination of hydroxysafflor yellow A ( QA ) in human plasma. Methods After being added into 0. 2M ammonium acetate (1∶1,V/V), QA was extrac-ted using solid-phase extraction technique, and the eluent was directly injected into LC-MS/MS systems. Agilent ZORBAX SB C18 (3. 0 × 100 mm, 3. 5 μm) column and isocratic elution system composing of meth-anol and 0. 2 mM ammonium acetate (70 ∶ 30, V/V) provided chromatographic separation of QA and internal standard isorhamnetin-3-O-neohespeidoside ( SLS) fol-lowed by detection with mass spectrometry. The mass transition ion-pair was followed as m/z 611 . 131→490. 900 for QA and m/z 623. 032→298. 800 for SLS. Results The retention time of QA and SLS was 2. 7 min and 3. 9 min respectively, with no interference in human blank plasma. The proposed method showed good linearity over the concentration range of 8. 57 ~4185 μg·L-1 for QA with a correlation coefficient≥ 0 . 9949 . The lower limit of quantitation was 8. 570 μg ·L-1 . The intra-batch and inter-batch precision and accuracy were within 7%. The average matrix effect ranged from 115. 72% to 119. 06% with RSD less than 5%. The average extraction recovery ranged from 77. 75% to 80. 76% with RSD less than 5%. Stability of human samples after 4 h at room temperature, after the three freeze-thaw cycles and after 31 days at -70℃, and post-preparative stability of the processed sam-ples after 24 h was acceptable. Plasma samples with the concentration beyond the upper quantitation limit could be accurately determined after being diluted using 6. 25 times ( V/V ) of human blank plasma. Conclusion Our current LC-MS/MS method is sensitive, accurate and convenient, and is proved to be suitable for the sys-tematic study on clinical pharmacokinetics of QA.
