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Algorithm for choosing the conditions of dual-wavelength detection of isomers in a multicomponent mixture

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Abstract

An algorithm for the quantitative determination of isomers by dual-channel HPLC detectors is considered using the example of a multicomponent mixture of six disulfo isomers of two organic dyes applied in manufacturing polarizers. The algorithm uses the methods of simultaneous detection at two wavelengths and suppression of peaks with subsequent optimization of the detection wavelength. The control of the isomer composition of mixtures of organic dyes allows one to optimize the optical parameters of thin films based on the anisotropic materials considered.

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Abbreviations

A:

light absorption

C:

concentration

C cl I, C c II, C cl III :

concentrations of the claret isomers in the mixture

C cl i , C or i :

concentrations of the claret and orange isomers in the ith peak, respectively

C or I, C or II, C or III :

concentrations of the orange isomers in the mixture

C x :

concentration of minor components

C 0 :

total concentration of the mixture

K λcl , K λor :

sensitivity coefficients at wavelength λ for the claret and orange isomers, respectively

S λi :

area under the ith peak at wavelength λ

λ1, λ2, λ3, λ4 :

detection wavelengths

cl:

claret isomers

I, II, III:

first, second, and third isomers, respectively

i:

chromatographic peak number

j:

isomer number

or:

orange isomers

References

  1. Fiske, T., Ignatov, L., Lazarev, P., Nazarov, V., and Paukshto, M., Molecular Alignment in Crystal Polarizers and Retarders, Society for Information Display. Int. Symp. Digest of Technical Papers, Boston, Mass., United States, May 19–24, 2002, pp. 866–869.

  2. Kosarev, E.L. and Muranov, K.O., Superresolution Chromatography, Prib. Tekh. Eksp., 2001, vol. 44, no. 5, pp. 74–79 [Instrum. Exp. Tech. (Engl. Transl.), vol. 44, no. 5, pp. 638–643].

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  3. Diode Array Detection in HPLC, Huber, L. and George, S.A., Eds., New York: Marcel Dekker, 1993. Translated under the title Primenenie diodno-matrichnogo detektirovaniya v VEZhKh, Moscow: Mir, 1993.

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Author information

Authors and Affiliations

  1. OOO Kontrakt, Moscow, Russia

    I. V. Khavrunyak, A. I. Elefterov & P. I. Lazarev

  2. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, Moscow, 125047, Russia

    L. S. Gordeev

Authors
  1. I. V. Khavrunyak
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  2. A. I. Elefterov
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  3. P. I. Lazarev
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  4. L. S. Gordeev
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Additional information

Original Russian Text © I.V. Khavrunyak, A.I. Elefterov, P.I. Lazarev, L.S. Gordeev, 2006, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2006, Vol. 40, No. 5, pp. 580–583.

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Khavrunyak, I.V., Elefterov, A.I., Lazarev, P.I. et al. Algorithm for choosing the conditions of dual-wavelength detection of isomers in a multicomponent mixture. Theor Found Chem Eng 40, 542–545 (2006). https://doi.org/10.1134/S0040579506050125

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  • DOI: https://doi.org/10.1134/S0040579506050125

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