期刊
JOURNAL OF ANALYTICAL CHEMISTRY
卷 74, 期 5, 页码 472-479出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1061934819050034
关键词
exhaled air analysis; volatile organic compounds; thermal desorption; gas chromatography; flame-ionization detector
资金
- Ministry of Education and Science of the Russian Federation [4.2612.2017/PCh]
- Russian Foundation for Basic Research [18-33-20009 mol_a_ved, RFMEFI59317X0008]
The possibility of determining volatile organic compounds contained in exhaled air by concentrating them in sorption tubes, two-stage thermal desorption, and gas-chromatographic determination with a flame-ionization detector on various chromatographic columns was studied. It has been established that TenaxTAis an optimal sorbent for the preconcentration, and the highest separation efficiency is achieved on a PLOT CP-Porabond-Q column. The preconcentration of analytes with no breakthrough was achieved upon passing a 0.5-L sample through a sorbent at a rate of 200 mL/min.
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