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Molecules 2018, 23(8), 1927; https://doi.org/10.3390/molecules23081927

Liquid Chromatography-Tandem Mass Spectrometry Simultaneous Determination and Pharmacokinetic Study of Fourteen Alkaloid Components in Dog Plasma after Oral Administration of Corydalis bungeana Turcz Extract

1
Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, No. 157 Baojian Road, Nangang District, Harbin 150081, Heilongjiang, China
2
Department of Pharmacy Management Harbin Medical University, Harbin 150086, Heilongjiang, China
3
Key Laboratory of Chinese Materia Medical (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 10 July 2018 / Revised: 27 July 2018 / Accepted: 27 July 2018 / Published: 2 August 2018
(This article belongs to the Section Analytical Chemistry)
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Abstract

A rapid and sensitive Ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was developed for the simultaneous determination of fourteen alkaloids in beagle dog plasma after a single oral dose of the Corydalis bungeana Turcz (C. bungeana) extract selected bifendate as the internal standard (IS). The plasma samples were preprocessed by liquid-liquid extraction (LLE) with aether before separation on an Agilent SB-C18 column (1.8 µm, 150 × 2.1 mm) using a gradient elution program. The mobile phase consists of 0.2% acetic acid and acetonitrile at the flow rate of 0.3 mL/min. In the positive ion mode, the analytes were detected by multiple reaction monitoring (MRM). The results indicated that calibration curves for fourteen analytes have good linearity (R2 = 0.9904). The lower limits of quantification (LLOQ) of fourteen alkaloids and IS were all over 4.87 ng/mL and the matrix effects ranged from 94.08% to 102.76%. The mean extraction recoveries of Quality control samples at low (LQC), medium (MQC) and high (HQC) and IS were all more than 78.03%. The intra- and inter-day precision (R.S.D.%) also met the criterion, at the same time the deviation of assay accuracies (R.E) ranged from −13.70% to 14.40%. The Tmax values of fourteen alkaloids were no more than 1 h. The range of Cmax was from 74.16 ± 8.71 to 2256 ± 255.9 ng/mL. The assay was validated in the light of the regulatory bioanalytical guidelines and proved acceptable, which was successfully applied to a pharmacokinetic study of these compounds in beagle dogs after oral administration of Corydalis bungeana Turcz extract. View Full-Text
Keywords: Ultra high-performance liquid chromatography-tandem mass spectrometry; Corydalis bungeana Turcz; alkaloids; pharmacokinetics Ultra high-performance liquid chromatography-tandem mass spectrometry; Corydalis bungeana Turcz; alkaloids; pharmacokinetics
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Dong, H.; Yan, G.; Wang, Z.; Wu, C.; Cui, B.; Ren, Y.; Yang, C. Liquid Chromatography-Tandem Mass Spectrometry Simultaneous Determination and Pharmacokinetic Study of Fourteen Alkaloid Components in Dog Plasma after Oral Administration of Corydalis bungeana Turcz Extract. Molecules 2018, 23, 1927.

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