炸药释出微量气体的固相微萃取吸附性能  

Absorption Properties of Solid Phase Microextraction for the Trace Gas from Explosives

作　　者：杨秀兰[1] 徐瑞娟[1] 罗顺火[1] 余坤[1] 秦骏勇[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《火炸药学报》2003年第4期74-77,共4页Chinese Journal of Explosives & Propellants

摘　　要：采用6种不同吸附剂固定相的固相微萃取对炸药造型粉在120℃放置所释放的微量气体进行了萃取吸附选择性研究,同时采用75μmCB/PDMS固相微萃取和气密针进样对在75℃条件下放置的炸药造型粉释出微量气体组分进行了采样分析,GC/MS初步定性分析结果表明,固相微萃取的各种萃取头对该炸药老化过程中释放的多种微量气体和有机挥发性组分具有选择性吸附萃取浓缩作用,固相微萃取可将这些微量组分富集浓缩1000倍以上,是一种有用的检测炸药释放气体的手段。Six kinds of absorbant of solid phase microextraction (SPME) have been used to study the outgas from explosives molding powder aging under the condition of 120℃. The extraction and absorption properties of these SPMEs and quantifying the gas components have been researched by using a SPME coupled GC/MS analytical technique. The results show that SPMEs can absorb selectively and preconcentrate the trace organic volatiles and other outgas from explosives and its pertinent materials storing at different conditions. The solid phase microextraction of 75 μm CB/PDMS is used to analyze the trace gas from the explosives aging under the condition of 75℃. The results show that SPMEs can absorb and preconcentrate the trace components of organic volatiles and other gases over 1 000 times. It is a very useful method to research the outgas from explosives.

关 键 词：炸药 微量气体 固相微萃取 吸附性能 GC/MS 

分 类 号：TQ560[化学工程—炸药化工]