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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Fast scanning calorimetry: Sublimation thermodynamics of low volatile and thermally unstable compounds
Thermochimica Acta, Volume 676, Year 2019
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Description
Fast scanning calorimetry (FSC) was applied for measurements of the sublimation rates of theophylline, caffeine and anthraquinone as reference compounds. In comparison to conventional vapor pressure determination techniques, this method requires only nano-gram-size samples. The increased surface to volume ratio allows for very high sublimation rates and makes the sublimation process dominant over a possible decomposition. Experimental conditions and data treatment have been elaborated and validated by comparison with reliable literature data. The FSC method “opens a new door” for reliable experimental determination of vapor pressures and sublimation enthalpies for very low volatile and thermally unstable compounds like bio-relevant molecules. © 2019 Elsevier B.V.
Authors & Co-Authors
Abdelaziz, Amir
Germany, Rostock
Universität Rostock
Verevkin, Sergey P.
Germany, Rostock
Universität Rostock
Russian Federation, Samara
Samara State Technical University
Schick, Christoph
Germany, Rostock
Universität Rostock
Russian Federation, Kazan
Kazan Federal University
Statistics
Citations: 22
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1016/j.tca.2019.05.008
ISSN:
00406031