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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2012, Vol. 17 ›› Issue (2): 206-210.

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Quantitative determination of Indapamide in human plasma by high performance liquid chromatography-tandem mass spectrometry

XU Shan1,2, LIANG Yu-guang2, QU Heng-yan2, LI Yuan-yuan2, GAO Hong-zhi2, HAO Guang-tao2   

  1. 1Department of Pharmacy, the 404th Hospital of PLA, Weihai 264200,Shandong,China;
    2Clinical Pharmacological Room of Department of Pharmacy, Affiliated Hospital, Academy of Military Medical Sciences, Beijing 100071,China
  • Received:2011-06-28 Revised:2012-01-23 Online:2012-02-26 Published:2012-03-12

Abstract: AIM: To establish a simple, sensitive method of high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) for the determination of Indapamide in human plasma.METHODS: Repaglinide calcium was used as internal standard.Indapamide was separated on an Agilent-ZORBAX-C18 column (2.1 mm×150 mm,5.0 μm).The mobile phase consisted of acetonitrile-0.1% formic acid(90∶10).Electrospray ionization(ES1) was applied and operated in the positive multiple reaction monitoring(MRM) mode,used the transitions of [M+H]+m/z 388.4 m/z 247.4 and [M+H]+m/z 384.2 m/z 231.3 to quantify Indapamide and the internal standard respectively.RESULTS: The linear calibration curve was obtained over the concentration range of 0.5-50 ng/mL.The limit of quantification was 0.5 ng/mL.The inter- and intra-day precision (RSD) were less than 15%.The average recovery was between 94.60% and 110.33%.CONCLUSION: The method had been proved to be specific,convenient,sensitive and suitable for the clinical investigation of Indapamide pharmacokinetics.

Key words: Indapamide, HPLC-MS-MS, Plasma concentration

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