全氟二甲基环丁烷示踪剂吸附采样  

Perfluorodimethylcyclobutane tracer sorption sampling.

作　　者：羊衍秋[1] 何静波[1] 叶仕有[1] 杨通在[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《中国环境科学》2004年第5期561-564,共4页China Environmental Science

摘　　要：借助气相色谱基本原理,测定了全氟二甲基环丁烷大气示踪剂通过Carboxen-569碳分子筛吸附管的分配系数,考察了温度和采样速度对穿透体积和安全采样体积的影响,确定了示踪剂吸附采样的基本参数吸附剂用量为150mg,吸附采样温度≤40℃,采样速度为200mL/min,样品解吸温度为200℃.With the aid of gas chromatograph basic theory, the distribution coefficient of perfluorodimethylcyclobutane (PDCB) atmospheric tracer was tested and determined through carboxen-569 carbon molecular sieve sorption pipe. the influence of temperature and sampling speed on the penetration volume and the safe sampling volume were investigated. the basic sampling parameters were ascertained. The use amount of adsorbent was 150mg, the sorption sampling temperature ≤40℃, the sampling speed was 200mL/min and the sample desorbing temperature was 200℃.

关 键 词：全氟二甲基环丁烷 示踪技术 样品采集 穿透体积 安全采样体积 

分 类 号：X830.1[环境科学与工程—环境工程]