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Identification and extraction—spectrophotometric or extraction—fluorimetric determination of organic nitrogen-containing triiodides, new biologically active compounds

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Abstract

A method for the identification of organic triiodides is proposed, and rapid, highly sensitive procedures for the extraction-spectrophotometric and extraction-fluorometric determination of medicinal preparations as ion associates with hydroxyxanthene (Eosin) and triphenylmethane (Bromothymol Blue) dyes. The formation of 1 : 1 ion associates with an absorption maximum at 545 nm (430 nm for ion associates with Bromothymol Blue) and a fluorescence maximum at 560 nm was detected. The ion associates were extracted with chloroform from a water-ethanol solution at pH 6.86 and 9.18. The detection limits were cmin ≈ 4.3 × 10-7 M for the extraction-spectrophotometric and cmin ≈ 8.6 sx 10-8 M for the extraction-fluorimetric procedure; RSD ≤2%. The developed procedures can be used for controlling medicinal preparations and monitoring biological materials

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Authors and Affiliations

  1. Department of Chemistry, Rostov State University, ul. Zorge 7, 344090, Rostov-on-Don, Russia

    M. S. Chernov’yants, E. B. Podgornaya & A. V. Chernyshev

  2. Institute of Physical and Organic Chemistry, Rostov State University, pr. Stachki 194/3, 344104, Rostov-on-Don, Russia

    A. V. Metelitsa & M. O. Knyazhanskii

Authors
  1. M. S. Chernov’yants
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  2. E. B. Podgornaya
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  3. A. V. Chernyshev
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  4. A. V. Metelitsa
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  5. M. O. Knyazhanskii
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Chernov’yants, M.S., Podgornaya, E.B., Chernyshev, A.V. et al. Identification and extraction—spectrophotometric or extraction—fluorimetric determination of organic nitrogen-containing triiodides, new biologically active compounds. J Anal Chem 55, 245–248 (2000). https://doi.org/10.1007/BF02757207

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  • DOI: https://doi.org/10.1007/BF02757207

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