Characterization of melanins by pyrolysis/gas chromatography/mass spectrometry

György Vas, Károly Vékey, Gábor Czira, József Tamás, Donata Favretto, Piero Traldi, Antonella Bertazzo, Carlo Costa, Graziella Allegri

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Various natural and synthetic melanins were studied by the pyrolysis/gas chromatography/mass spectrometry technique, using both resistive and Curie‐point heating. The results obtained by the two pyrolysis procedures are different and complementary. By means of Curie‐point pyrolysis, at long times and high temperatures low molecular weight gases are produced from various melanins; the yields of the common pyrolysis products are also dependent on the melanin under study. By resistive heating, higher molecular weight compounds are produced, mainly nitrogen and oxygen heterocyclic systems, and differences are still evident among the products from the different melanins.

Original languageEnglish
Pages (from-to)870-873
Number of pages4
JournalRapid Communications in Mass Spectrometry
Volume7
Issue number10
DOIs
Publication statusPublished - 1993

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Melanins
Gas chromatography
Mass spectrometry
Pyrolysis
Molecular weight
Heating
Nitrogen
Gases
Oxygen
Temperature

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

Cite this

Characterization of melanins by pyrolysis/gas chromatography/mass spectrometry. / Vas, György; Vékey, Károly; Czira, Gábor; Tamás, József; Favretto, Donata; Traldi, Piero; Bertazzo, Antonella; Costa, Carlo; Allegri, Graziella.

In: Rapid Communications in Mass Spectrometry, Vol. 7, No. 10, 1993, p. 870-873.

Research output: Contribution to journalArticle

Vas, G, Vékey, K, Czira, G, Tamás, J, Favretto, D, Traldi, P, Bertazzo, A, Costa, C & Allegri, G 1993, 'Characterization of melanins by pyrolysis/gas chromatography/mass spectrometry', Rapid Communications in Mass Spectrometry, vol. 7, no. 10, pp. 870-873. https://doi.org/10.1002/rcm.1290071003
Vas, György ; Vékey, Károly ; Czira, Gábor ; Tamás, József ; Favretto, Donata ; Traldi, Piero ; Bertazzo, Antonella ; Costa, Carlo ; Allegri, Graziella. / Characterization of melanins by pyrolysis/gas chromatography/mass spectrometry. In: Rapid Communications in Mass Spectrometry. 1993 ; Vol. 7, No. 10. pp. 870-873.
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