Decontamination of Chemical Warfare Agent Simulants using Vapor-phase Hydrogen Peroxide

Abstract

− Vapor-phase hydrogen peroxide(VPHP) has been used as a sterilant in the field of medical and pharmaceutical application due to low corrosive than chlorine contained sterilant. In addition, it is well known that VPHP is effective for decontamination of chemical warfare agents by adding ammonia gas. In this study, the decontamination efficiency was confirmed about CEPS, DFP and dimethoate as simulants of HD, GD and VX using VPHP respectively. For this purpose, VPHP generated from self configured device was injected into decontamination chamber and maintained for reaction time. After the decontamination, the residues are analyzed by GC/MS and decontamination efficiency was calculated. Through by-product for each simulants, the similarities in reaction mechanism of chemical warfare agents were confirmed. CEPS was completely decontaminated at 30% relative humidity within 60 min. By adding ammonia gas, DFP and dimethoate were completely decontaminated within 30 and 150 min respectively. 실 험 2-3. 실험장치 및 방법과산화수소 증기는 실험목적으로 자체 제작한 기화장치를 사용하 여 발생시켰다 (Fig. 1). 과산화수소수 기화방법은 증기실험에서 일반 적으로 이용되는 방법으로, 끓는점 이상으로 제어되고 있는 열판에

Facile Fabric Detoxification Treatment Method Using Microwave and Polyethyleneimine Against Nerve Gas Agents

“…DFP was hydrolyzed to DHP, a nonhazardous compound. However, the boiling point of DHP was higher than the maximum operating temperature of the column's stationary phase [25]. Moreover, the DHP peak was not detected by the GC analysis.…”