QQ客服 官方微博 反馈留言

	正辛醇的γ辐照稳定性及辐解产物分析; Radiation Stability and Analysis of Radiolysis Product of 1-Octanol
	俞初红 ; 张佳玮 ; 戴静 ; 彭静 ; 李久强 ; 翟茂林
	2010
关键词	化学结构 正辛醇 辐照稳定性 γ辐解产物 色谱分析 Chemical structure 1-Octanol Radiation stability gamma-Radiolysis product Chromatographic analysis
英文摘要	在高放射性废液后处理的萃取工艺中,正辛醇被认为是具有应用前景的稀释剂之一,而研究其γ辐射效应对指导其实际应用具有重要意义.本文对N2环境下γ辐照后的正辛醇进行了紫外-可见(UV-Vis)光谱和傅里叶变换红外(FTIR)光谱研究.结果表明正辛醇在100kGy以下辐照后化学结构未发生变化,而吸收剂量增至300kGy时有羰基化合物生成.通过色谱(GC)和色质联用(GC-MS)进一步分析了高剂量(600kGy)辐照后正辛醇的气体及液体辐解产物,发现主要气体产物为H2,并伴有微量的CO2和CH4;主要液体产物为正辛醛,其占未辐解正辛醇的质量百分含量小于1%,并伴有少量正庚烷和8-羟基十五醇.对辐照后正辛...; 1-Octanol is a promising solvent for the extraction of high-level radioactive waste from nuclear fuel reprocessing and a study of radiation effects on 1-octanol is necessary before its industrial application in high-radiation environments In this work, UV-Vis spectroscopy and Fourier transform infrared (FTIR) spectroscopy were used to investigate the radiation stability of 1-octanol in nitrogen for the first time Results indicate that 1-octanol is chemically stable at a dose of 100 kGy and that compounds containing a carboxyl group are formed at a dose of more than 300 kGy The major radiolysis products of irradiated 1-octanol at 600 kGy were analyzed using gas chromatography(GC) and gas chromatography-mass spectrometry(GC-MS) Hydrogen was formed as a major gaseous product and small amounts of carbon dioxide and methane were also found The dominant liquid product was 1-octanal and its mass percent was less than 1% in the 1-octanol solution Small amounts of heptane and 8-pentadecanol were also produced Analysis of the chemical structure and radiolysis products of the irradiated 1-octanol suggests that during gamma irradiation in nitrogen, C-H bond breakage at the alpha-carbon in 1-octanol is the dominant reaction and the C-C bond at the beta-carbon can break as well Additionally, hydrogen abstraction reactions occur between the primary H-atom radical produced during irradiation and 1-octanol; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000276958400026&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 04; 988-992; 26
语种	中文
出处	知网 ; 万方 ; SCI
出版者	物理化学学报
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/80259]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	俞初红,张佳玮,戴静,等. 正辛醇的γ辐照稳定性及辐解产物分析, Radiation Stability and Analysis of Radiolysis Product of 1-Octanol. 2010-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。