微量气体转移技术在重量法制备气体标准物质中的应用  

The Application of Trace Gas Transfer Technique to Preparing Gas CRMs by Gravimatric Method

作　　者：胡树国[1] 王德发[1] 王哲[1] 

机构地区：[1]中国计量科学研究院,北京100013

出　　处：《计量学报》2013年第1期72-75,共4页Acta Metrologica Sinica

摘　　要：微量气体转移技术是一种新兴技术，具有操作便捷、快速等优点。利用该技术在气体标准物质制备过程中可以保持称量准确度不变的情况下，减少制备步骤，特别适合在目标物的纯物质较少或步骤较多的气体标准物质制备中使用。从原理和操作过程等方面对该技术进行介绍，并通过具体实例来验证了该技术的可靠性。Trace gas transfer technique is a new technique with the advantage of convenience and quickness. It decreases dilution times during the preparation of gas CRMs, while keeping weighing accuracy, specially applied to prepare gas CRMs with lack of component gas or multi-dilution. The theory and operating process of this technique is introduced, furthermore, the reliability is verified by experimental data.

关 键 词：计量学 微量气体转移技术 重量法 气体标准物质 

分 类 号：TB99[一般工业技术—计量学]