Abstract
An efficient and reproducible electron-capture gas chromatographic protocol that allows the simultaneous detection and quantification of the polyamines putrescine (1,4-diaminobutane), cadaverine (1,5-diaminopentane), and spermidine (N-[3-aminopropyl]-1,4-diaminobutane) was developed. Hepatic tissue from male Sprague-Dawley rats was used for analysis. The polyamines and the internal standard (sertraline) were extracted and derivatized with pentafluorobenzoyl chloride (PFBC) under basic aqueous conditions prior to analysis on a gas chromatograph equipped with a capillary column (narrow-bore fused silica column; 25 mm x 0.32 mm) and an electron-capture detector. PFBC reacts with the amine functions of the polyamines examined here to produce PFB derivatives with high sensitivity on electron-capture detection. The method permitted the quantitative analyses of all three amines in rat hepatic tissue; the concentration of putrescine, but not spermidine, was increased significantly following a 14-day administration of the diamine oxidase (DAO) inhibitor aminoguanidine. Cadaverine was also present at increased concentrations in hepatic homogenates from aminoguanidine-treated rats. Extractive derivatization with PFBC followed by gas chrom...Continue Reading
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