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Thermal kinetic studies on the decompositions of cefuroxime lysine in different atmospheres and heating rates

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Abstract

The thermal decomposition of a new antibiotic agent, cefuroxime lysine, was investigated by thermogravimetry analysis/derivative thermogravimetry and differential scanning calorimetry (DSC) methods in anoxic and oxidative environments. The influence of heating rates (including 5, 10, 15, and 20 °C/min) on the thermal behavior of cefuroxime lysine was revealed. By the methods of Kissinger and Flynn–Wall–Ozawa, the thermal kinetic parameters of activation energy and pre-exponential factor for the exothermic processes under non-isothermal conditions were calculated using the analysis of corresponding DSC curves.

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Acknowledgements

The authors thank Prof. Karl Tsim of Hong Kong University of Science and Technology for his comment on this manuscript. This study was supported by the National Key Scientific Project for New Drug Discovery and Development (No. 2009ZX09301-012).

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Correspondence to Kaishun Bi.

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Zhao, L., Li, Q., Cui, Y. et al. Thermal kinetic studies on the decompositions of cefuroxime lysine in different atmospheres and heating rates. J Therm Anal Calorim 108, 269–273 (2012). https://doi.org/10.1007/s10973-011-1833-x

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  • DOI: https://doi.org/10.1007/s10973-011-1833-x

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