Determination of the Kinetic Characteristics of Thermal Desorption and Heterogeneous Reaction of Dissociation of Morphine Molecules on the Surface of Oxidized Tungsten

Capa

Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

Under the same experimental conditions the processes of adsorption, heterogenous reaction of dissociation on the surface and thermodesorption of C17H19NO3 morphine molecules with m/z 285 Da on the surface of oxidized tungsten was studied by the non-stationary such as voltage modulation and flux modulation methods. The experiments were carried out on a high-vacuum mass-spectrometer, in which a “black chamber” was used, all walls of which are cooled with liquid nitrogen. The kinetic characteristics of the processes of thermal desorption and the heterogeneous reaction of dissociation of molecules on the surface such as the rate constant of thermal desorption in the ionic and neutral states K+ and K0, the corresponding activation energies of thermal desorption E+ and E0, the pre-exponential factors C and D, as well as the rate constant of the heterogeneous dissociation reaction Kd and the activation energy of the heterogeneous reaction dissociations on the surface, exponential factors in the equation of continuity of the surface concentration for C9H7N+CH3 radicals with m/z 144 during the adsorption of morphine molecules on the surface of oxidized tungsten were determined.

Sobre autores

G. Rakhmanov

National University of Uzbekistan

Autor responsável pela correspondência
Email: rakhmanov.gt@mail.ru
Uzbekistan, 100174, Tashkent

B. Umirzakov

Tashkent State Technical University

Email: usmanov@iplt.uz
Uzbekistan, 100095, Tashkent

D. Usmanov

Institute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences

Autor responsável pela correspondência
Email: usmanov@iplt.uz
Uzbekistan, 100125, Tashkent

Bibliografia

  1. Rasulev U.Kh., Zandberg E.Ya. // Progress Surf. Sci. 1988. V. 28. № 3. P. 181.
  2. Назаров Э.Г., Расулев У.Х. Нестационарные процессы поверхностной ионизации. Ташкент: ФАН, 1991. 204 с.
  3. Зандберг Э.Я., Расулев У.Х., Шустров Б.Н. // Докл. АН СССР. 1967. Т. 172. С. 885.
  4. Usmanov D.T., Khasanov U., Rasulev U.Kh. // Chem. Nat. Compnd. 2003. V. 39. № 5. P. 489.
  5. Usmanov D.T., Khasanov U. // J. Surf. Invest. X-ray, Synchrotron Neutron Tech. 2011. V. 5. Iss. 3. P. 503.
  6. Usmanov D.T., Khasanov U., Pantsirev A., J. Van Bocxlaer. // J. Pharm. Biomed. Analysis. 2010. V. 53. Iss. 4. P. 1058.
  7. Usmanov D.T., Khasanov U., Akhunov Sh. Dj., Rotshteyn V.M., Kasimov B.Sh. // Eur. J. Mass Spectrometry. 2020. V. 26. № 2. P. 153.
  8. Akhunov Sh.D., Kasimov B.Sh., Ashurov Kh.B., Usmanov D.T. // J. Analyt. Chem. 2021. V. 76. P. 1499.
  9. Wheeler D.M.S., Kinstle T.H., Rinehart K.L. // J. Am. Chem. Soc. 1967. V. 89. № 17. P. 4494.
  10. Raith K., Neubert R., Poeaknapo C., Boettcher C., Zenk M., Schmidt J. // J. Am. Soc. Mass Spectr. 2003. V. 14. Iss. 11. P. 1262.
  11. Zitrin S., Yinon J. // Analyt. Lett. 1977. V. 10. Iss. 3. P. 235.
  12. Zhang X., Chen M., Cao G. et al. // J. Anal. Meth. Chem. 2013. V. 2. P. 151934.
  13. Phillips W.H. Jr., Ota K., Wade N.A. // J. Anal. Toxicol. 1989. V. 13. P. 268.
  14. Pervukhin V.V., Sheven D.G. // J. Anal. Chem. 2016. V. 71. № 9. P. 878.
  15. Schwerner T., Rossler T., Ahrens B. et al. // Forensic Chem. 2017. V. 4. P. 9.
  16. Al-Salman H.N.K. // Eur. J. Sci. Res. 2017. V. 147. № 4. P. 403.
  17. Sanchez P.L., Pereboom-de Fauw D.P.K.H., Mulder P.P.J., Spanjer M., de Stoppelaar J., Mol H.G.J., de Nijs M. // Food Chem. 2018. V. 242. P. 443.
  18. Kong L., Walz A.J. // Forensic Toxicol. 2020. V. 38. P. 352.
  19. Зандберг Э.Я., Ионов Н.И., Расулев У.Х., Халиков Ш.М. // ЖТФ. 1978. Т. 48. № 1. С. 133.
  20. Зандберг Э.Я., Расулев У. Х., Назаров Э.Г. // ЖТФ. 1980. Т. 50. № 8. С. 1752.
  21. Назаров Э.Г., Расулев У.Х., Рахманов Г.Т. // Письма в ЖТФ. 1987. Т. 13. № 6. С. 354.
  22. Рахманов Г.Т., Саидумаров И.М., Худоева Х.К. // Поверхность Рентген., синхротр. и нейтрон. исслед. 2009. № 8. С. 103.
  23. Зандберг Э.Я., Расулев У.Х., Назаров Э.Г. // ЖТФ. 1981. Т. 51. № 1. С. 123.
  24. Хасанов У., Исхаковa С.С., Раджабов А.Ш., Рахманов Г.Т. // Uzbek J. Phys. 2016. V. 18. № 1. P. 45.
  25. Fujii T., Kurihara J., Aromoto H., Mitsusuka Y. // J. Anal. Chem. 1994. V. 66. P. 1884.

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML
2.

Baixar (68KB)
3.

Baixar (74KB)
4.

Baixar (257KB)
5.

Baixar (41KB)
6.

Baixar (42KB)

Declaração de direitos autorais © Г.Т. Рахманов, Б.Е. Умирзаков, Д.Т. Усманов, 2023

Este site utiliza cookies

Ao continuar usando nosso site, você concorda com o procedimento de cookies que mantêm o site funcionando normalmente.

Informação sobre cookies