The Comparison of Laser Desorption/Ionization of Acridine Orange and Methylene Dlue Dyes on the Surface of Thermally Exfoliated Graphite

Authors

  • V. O. Gabovich Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • V. O. Pokrovskiy Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine

Abstract

Peculiarities have been investigated of acridine orange and methylene dlue dyes ion formation in mass-spectrometric experiments using laser desorption/ionization from the surface of thermally exfoliated graphite samples used as ionization supports. It has been shown that mass-spectra contain, in addition to molecular ion М+, pseudo-molecular ions (М+Н)+, (М+2Н)+ (М+3Н)+. Up-mentioned ions were present in mass spectra under all conditions of mass spectrometric experiment; their relative intensities depended upon details of thermally exfoliated graphite sample preparation, upon power and duration of laser pulse, and upon lifetime of desorbed molecules and ions in the  source of mass spectrometer where ion molecular reactions may take place. The distribution of monoisotopic intensities for dyes under investigation has been presented and discussed. Possible explanation is proposed for the source of hydrogen atoms participating in ion formation of dyes.

References

1. Flynn G.W. J. Chem. Phys. 2011.  135 (5). ID 050901.

2. Geim A.K., Kim P.  Sci Am.  2008. 298 (4). 90.

3. Kotov V. N., Uchoa B., Pereira V.M. et al.  Rev. Mod. Phys. 2012.  84 (3).  1067.

4. Paton B.E., Moskalenko V.F. Chekman I.S. Movchan B.O. Nanoscience and nanotechnology: technical, medical and social aspects. Reports NAS Ukraine. 2009. 6. 18.

5. Габович В.О., Покровський В.О. Іоно-утворення метиленового блакитного на різних поверхнях // Поверхность. – 2011. – Т. 3, № 18. – С. 191–195.

6. Габович В.О., Покровський В.О., Дем’яненко Є.М., Гребенюк А.Г. Експериментальне та теоретичне дослідження лазерної десорбції/іонізації метиленового блакитного з поверхні терморозширеного графіту // Укр. фіз. журнал. – 2012. – Т. 57, № 7. – С. 775–782.

6. Снегирь С.В., Приходько Г.П., Семенцов Ю.И. и др. Лазерная десорбция/ионизация с поверхности терморасширенного графита // Химия, физика и технология поверхности. – 2007. – Вып. 13. – С. 201–216.

Downloads

How to Cite

(1)
Gabovich, V. O.; Pokrovskiy, V. O. The Comparison of Laser Desorption Ionization of Acridine Orange and Methylene Dlue Dyes on the Surface of Thermally Exfoliated Graphite. Him. Fiz. Tehnol. Poverhni 2013, 4, 196-201.

Issue

Vol. 4 No. 2 (2013): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

Section

Articles

License

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.