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FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels

Judith Mihály
Silvana Sterkel
Hugo M. Ortner
László Kocsis
László Hajba
Éva Furdyga
János Mink

Puni tekst: engleski, pdf (204 KB) str. 497-501 preuzimanja: 10.704* citiraj
APA 6th Edition
Mihály, J., Sterkel, S., Ortner, H.M., Kocsis, L., Hajba, L., Furdyga, É. i Mink, J. (2006). FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels. Croatica Chemica Acta, 79 (3), 497-501. Preuzeto s https://hrcak.srce.hr/5664
MLA 8th Edition
Mihály, Judith, et al. "FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels." Croatica Chemica Acta, vol. 79, br. 3, 2006, str. 497-501. https://hrcak.srce.hr/5664. Citirano 08.03.2021.
Chicago 17th Edition
Mihály, Judith, Silvana Sterkel, Hugo M. Ortner, László Kocsis, László Hajba, Éva Furdyga i János Mink. "FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels." Croatica Chemica Acta 79, br. 3 (2006): 497-501. https://hrcak.srce.hr/5664
Harvard
Mihály, J., et al. (2006). 'FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels', Croatica Chemica Acta, 79(3), str. 497-501. Preuzeto s: https://hrcak.srce.hr/5664 (Datum pristupa: 08.03.2021.)
Vancouver
Mihály J, Sterkel S, Ortner HM, Kocsis L, Hajba L, Furdyga É i sur. FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels. Croatica Chemica Acta [Internet]. 2006 [pristupljeno 08.03.2021.];79(3):497-501. Dostupno na: https://hrcak.srce.hr/5664
IEEE
J. Mihály, et al., "FTIR and FT-Raman Spectroscopic Study on Polymer Based High Pressure Digestion Vessels", Croatica Chemica Acta, vol.79, br. 3, str. 497-501, 2006. [Online]. Dostupno na: https://hrcak.srce.hr/5664. [Citirano: 08.03.2021.]

Sažetak
Surface corrosion of polytetrafluoroethylene (PTFE) based microwave digestion vessels was monitored by reflection FTIR and FT-Raman techniques. Samples were taken from digestion vessels after 0 (new), 50, 100, and 200 digestion cycles of milk powder. The spectrum of the new (unused) sample was subtracted from the spectra of used vessels in order to identify small differences, e.g., surface degradation or modification, between the samples. The new IR features of CF2 and CF3 groups for PTFE samples at 1197, 1139, and 642 cm–1 refer to surface modification (degradation) of the polymer chain. Special surface species, such as aliphatic hydrocarbons, inorganic nitrates and FNO3, were identified. The Raman spectra of PTFE samples also showed formation of new CF3 groups, indicating that the polymer chain (or side chain) was changed (shortened) after different cycles.

Ključne riječi
surface degradation; FTIR micro ATR; FT-Raman; Teflon digestion vessel

Hrčak ID: 5664

URI
https://hrcak.srce.hr/5664

Posjeta: 11.661 *