摘要
ＨＣＦＣ－１４１ｂ是氟利昂类物质的主要替代物之一．用微量引入氧气的方法，大幅度提高了电子捕获检测（ＥＣＤ）的响应值，从而使常规的ＧＣ－ＥＣＤ方法能有效测量该物质．数据显示，当载气中φ（Ｏ２）＝１．０％时，这种灵敏度增强效应最佳，是无氧情况下的５０倍；
Dichloro, 1 fluoroethane (HCFC 141b) is one of the main substitutes for CFCs. By introducing O 2 into the carrier gas, ECD response to this material will be significantly increased, making the conventional GC ECD method can measure this material effectively. When O 2 concentration is 1 0%, the response enhancement effect will be the best and reach 50 times greater than when no oxygen is present. Possible mechanisms are discussed here.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1999年第1期116-118,共3页
Journal of Fudan University：Natural Science
