121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-399
Subject Comparison of Absorption and Adsorption Capabilities of CWAs on Different Sorbents
Authors Ji Eun Jeong, Sun Dal Kim*, Yong Han Lee
Agency for Defense Development, Korea
Abstract Chemical warfare agents (CWAs) are chemical substances whose toxic properties are used to kill, injure or incapacitate human beings. In particular, persistent chemical agents such as VX, HD, and GD remain on skin, clothes, and other surfaces for a long time. Therefore, decontamination to eliminate the toxic CWAs is an important process and is required in various places such as laboratories, pilot plants, as well as on the battlefield. Decontamination in the battlefield requires more rapid removal of CWAs and easy application of decontaminants. In order to meet these battlefield conditions, it may be desirable to decontaminate the CWAs by means of physical absorption and adsorption using solid sorbents. In this study, the absorption and adsorption capabilities of CWAs were compared according to the type of sorbents used. The samples were prepared using liquid-phase extraction and solid-phase micro-extraction techniques which is useful for capturing and analyzing organic compounds in the gas phase in the sample headspace. Their efficiencies were analyzed by gas-chromatographic method. Details of the physical decontamination differences of CWAs according to the sorbent type will be presented.
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