Quantitative determination of the angiotensin-converting enzyme inhibitor lisinopril in human plasma by stable isotope dilution gas chromatography/negative ion chemical ionization mass spectrometry

A simple, highly accurate and precise method for the quantitative measurement of the angiotensin‐converting enzyme inhibitor lisinopril in human plasma is presented. The assay is based on gas chromatography/negative ion chemical ionization mass spectrometry. The preparation of stable isotope labelle...

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Bibliographic Details
Published in:Rapid communications in mass spectrometry 1998-01, Vol.12 (21), p.1591-1594
Main Authors: Leis, H. J., Fauler, G., Raspotnig, G., Windischhofer, W.
Format: Article
Language:English
Subjects:
Angiotensin-Converting Enzyme Inhibitors - blood
Angiotensin-Converting Enzyme Inhibitors - pharmacokinetics
Chromatography, Gas
Humans
Indicators and Reagents
Lisinopril - blood
Lisinopril - pharmacokinetics
Mass Spectrometry
Reproducibility of Results
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Summary:A simple, highly accurate and precise method for the quantitative measurement of the angiotensin‐converting enzyme inhibitor lisinopril in human plasma is presented. The assay is based on gas chromatography/negative ion chemical ionization mass spectrometry. The preparation of stable isotope labelled lisinopril for use as an internal standard is described. The method involves solid phase extraction on C18 sorbent and derivatization to the methyl diester–trifluoroacetamide derivatives. The detection limit was found to be 50 pg and a lower limit of quantification was reached down to 0.5 ng/mL plasma. © 1998 John Wiley & Sons, Ltd.
ISSN:0951-4198
1097-0231
DOI:10.1002/(SICI)1097-0231(19981115)12:21<1591::AID-RCM368>3.0.CO;2-C