消除热脱附背景干扰的方法  

Methods for Eliminating Background Interference of Thermal Desorption

作　　者：甘伟[1] 刘学敏 郭志顺[1] 吴健 

机构地区：[1]重庆市环境监测中心,重庆401147 [2]重庆惠能标普科技有限公司,重庆401117 [3]重庆朗天制药有限公司,重庆401221

出　　处：《理化检验（化学分册）》2015年第6期750-752,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：研究了消除热脱附背景干扰的方法。在常规高温净化除杂的基础上,提出了超声萃取-高温净化联用除杂法。结果表明:超声萃取-高温净化联用除杂法有较好的除杂效果。本法在消除热脱附背景干扰、确保热解析管快速重复使用和保证目标化合物定性定量准确性方面具有积极的作用。Methods for eliminating background interference of thermal desorption were studied. Based on the traditional high temperature purification, tradem use of ultrasonic extraction and high temperature purification was proposed. It was found that the trandem using method showed good cleaning effect. The method showed improvement on eliminating background interference of thermal desorption,insuring quickly reuse of the thermal desorption tubes and ensuring the qualitative and quantitative accuracy of the target compounds.

关 键 词：热脱附 背景干扰 超声萃取 高温净化 

分 类 号：O657.7[理学—分析化学]