SPECTROPHOTOMETRIC DETERMINATION OF SULPYRINE USING ο-HYDROXY-HYDROQUINONEPHTHALEIN AND CERIUM(IV) APPLICATION OF XANTHENE DERIVATIVES FOR ANALYTICAL CHEMISTRY. Part 43

Yoshikazu FUJITA; Itsuo MORI; Shoko KITANO

doi:10.2116/bunsekikagaku.33.9_E383

SPECTROPHOTOMETRIC DETERMINATION OF SULPYRINE USING ο-HYDROXY-HYDROQUINONEPHTHALEIN AND CERIUM(IV)

APPLICATION OF XANTHENE DERIVATIVES FOR ANALYTICAL CHEMISTRY. Part 43

Yoshikazu FUJITA, Itsuo MORI, Shoko KITANO

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Keywords: spectrophotometric determination of pyrazolones with ο-hydroxyhydroquinonephthalein- cerium(IV), in the presence of cetyltrimethylammonium chloride, sulpyrine in injection

JOURNAL FREE ACCESS

1984 Volume 33 Issue 9 Pages E383-E388

DOI https://doi.org/10.2116/bunsekikagaku.33.9_E383

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Abstract

A simple and sensitive spectrophotometric method for the determination of sulpyrine utilizing the decrease in the absorbance of ο-hydroxyhydroquinonephthalein-cerium(IV) complex was established. The method could be used in the concentration range of 2 - 20 μg/10 ml of sulpyrine; where the effective molar "desorptivity" at 570 nm was 1.2 × 10⁵ dm³ mol^-1 cm^-1 The other pyrazolone derivatives(antipyrine, aminopyrine and phenylbutazone) could be also determined in the same way. The proposed method was successfully applied to the determination of sulpyrine in commercial injections.

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