A sensitive analytical method for the determination of SG-SP1 in rat plasma by HPLC-MS/MS and its application to a pharmacokinetic study

Author(s):  
Juhyung Kang ◽  
Jihyun Won ◽  
Xiang Fei ◽  
Keumhan Noh ◽  
Sang-Hyun Kim ◽  
...  
2015 ◽  
Vol 7 (24) ◽  
pp. 10238-10242
Author(s):  
Song-Feng Lv ◽  
Xiang-Hong Wang ◽  
Bo Wang ◽  
Hong-Wei Li ◽  
Xiao-Lei Zhang ◽  
...  

In this study, a simple, sensitive, and robust analytical method based on ultra-performance liquid chromatography (UPLC) has been developed for the determination of kaempferide in rat plasma using diazepam as the internal standard (IS).


Author(s):  
Shixing Zhu ◽  
Jiayuan Zhang ◽  
Zhihua Lv ◽  
Mingming Yu

Background: Apigenin, a natural plant flavone, has been shown to possess a variety of biological properties. Objective: In this report, a highly selective and sensitive LC-MS/MS method was developed and validated for the determination of apigenin in rat plasma. Methods: Analysts were separated on the HSS T3 column (1.8 μm 2.1×100 mm) using acetonitrile and 0.1% formic acid in 2 mM ammonium acetate buffer at a supply rate of 0.200 mL/min as eluent in gradient model. Results: Plasma samples were treated by protein precipitation using acetonitrile for the recovery ranging from 86.5% to 90.1% for apigenin. The calibration curves followed linearity in the concentration range of 0.50-500 ng/mL. The inter-day and intra-day precisions at different QC levels within 13.1% and the accuracies ranged from -10.6% to 8.6%. Conclusion: The assay has been successfully applied to the pharmacokinetic study of apigenin in rats.


2021 ◽  
Author(s):  
Zhen‐miao Qin ◽  
Yong‐hui Li ◽  
Yin‐feng Tan ◽  
Hai‐long Li

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