期刊
CHEMOSPHERE
卷 152, 期 -, 页码 47-54出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2016.02.083
关键词
Gliding arc discharge; Emission spectroscopy; Pharmaceuticals; Half-life; Degradation mechanism
资金
- Ministry of Education, Youth and Sports of the Czech Republic [Z. 1.05/2.1.00/01.0024, LO1205, LO1207]
- Grant Agency of the University of South Bohemia in Ceske Budejovice [102/2013/S]
This study investigated the influence of gliding arc plasma discharge on the degradation of Verapamil hydrochloride in water. The plasma discharge was characterized by means of optical emission spectroscopy. Spectra of various atomic and molecular species were observed. Aqueous solution of Verapamil hydrochloride was exposed to gliding arc discharge operated in continuous discharge at atmospheric pressure and room temperature. The identification of Verapamil, the degradation mechanisms of Verapamil and its transformation products were performed using liquid chromatography - mass spectrometry (HPLC-MS). Experimental results indicate that the atmospheric pressure gliding arc plasma treatment has noticeable effects on Verapamil with satisfactory degradation efficiency. Plausible mechanisms of the degradation were discussed. (C) 2016 Elsevier Ltd. All rights reserved.
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