An-Najah National University

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  • Sunday, December 1, 1996
  • Emodin, A Naturally Occuring Anthraquinone: Its Isolation and Spectrophotometric Determination in Rumex Cyprius Plant
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  • A new method for isolation and specrophotometric determination of emodin is presented. Emodin was isolated by thin layer chromatography (tlc) and column chromatography (cc) techniques, as an orange long crystalline substance. Emodin exhibits two absorption maxima, at 420 and 520 nm. Stability of the color and the effect of pH were studied. Beer's law is obeyed in the range 2-30 ppm.

    The method is applied to the determination of emodin in roots, stems, and leaves of Rumex cyprius plant.
    Spectroscopy Letters, Volume 29, Issue 8 December 1996 , pages 1539 - 1543
     
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Mohammed Saleem Ali-Shtayeh
Applied biology and biotechnology
 
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