4.5 Article

Quantification of apolipoprotein A-I mimetic peptide D-4F in rabbit plasma by high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry

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ELSEVIER SCIENCE BV
DOI: 10.1016/j.jchromb.2009.04.044

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Apolipoprotein A-I mimetic peptide; D-4F; Quantification; LC/MS/MS

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The apolipoprotein A-I mimetic peptide D-4F is a potential therapeutical agent effective in maintaining cardiovascular health. A bioanalytical assay based on high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC/MS/MS) to quantitate the D-4F amount in rabbit plasma was developed and validated. A compound with a close structure similarity to the D-4F(only one amino acid A-V altered) was used as an internal standard. Both D-4F and the internal standard were extracted by protein precipitation using acetonitrile/0.2% Triton XL 80N. The correlation coefficient of the calibration curve was 0.9991 in the range 20-40,000 ng/mL This assay can be used for pharmacokinetic studies of the drug. Also, it may be adjusted for the quantification of other members of apolipoprotein AA mimetic peptide family. (C) 2009 Elsevier B.V. All rights reserved.

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