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High-performance liquid chromatographic analysis of iodochlorhydroxyquin in plasma
Abstract:
A simple isocratic high-performance liquid chromatographic procedure for the analysis of iodochlorhydroxyquin in human plasma is described. Protein was precipitated using perchloric acid, and the supernatant and precipitated protein fractions were extracted with ether. The ether phases were evaporated to dryness, reconstituted in mobile phase, and chromatographed. A reversed-phase microparticulate C18 column, a precolumn, and a UV detector at 256 nm were used. A mobile phase containing 80% methanol and 20% of 0.05 M phosphoric acid was employed at a flow rate of 1 ml/min. Quantitation of iodochlorhydroxyquin in the 1--15-microgram/ml range in human plasma was demonstrated with a coefficient of variance of 0.1--0.06. Hydrocortisone, which is used in combination with iodochlorhydroxyquin in ointments and creams, does not interfere in the assay.
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