基于动态配气技术的气体标准物质研制进展  

Progress in Development of Gas Reference Materials Based on Dynamic Gas Mixing Technology

作　　者：韩中杰 刘沂玲[1] 郝静坤 谢聪慧 李秀丽 王德发[1] HAN Zhong-jie;LIU Yi-ling;HAO Jing-kun;XIE Cong-hui;LI Xiu-li;WANG De-fa(National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院,北京100029

出　　处：《化学试剂》2024年第7期91-99,共9页Chemical Reagents

基　　金：国家重点研发计划项目《挥发性有机物激光雷达与便携式质谱监测技术研发及应用示范》(2022YFC3700400)中课题《VOCs立体快速测量质量控制、标准标定与标准规范研究》(2022YFC3700404)。

摘　　要：气体标准物质作为气体成分测量的计量标准,在气体检测中具有不可或缺的重要作用。而如何制备高精度、量值准确、种类多样的气体标准物质,一直是气体计量研究工作中的挑战重点和热门领域。经过多年的发展,在气体标准物质的生产中,目前常用的配气方法分为静态法和动态法两种。其中静态法由于其自身原理缺陷存在一定的应用限制。与静态配气法相比,动态配气法能够在更宽的浓度范围内产生更大数量的气体标准物质,且具有消除容器管壁吸附等优势,目前在气体标准物质配制中的势头强劲。针对目前常见的动态配气技术从配气原理以及目前在气体计量工作中的研究进展两个方面进行了系统的总结阐述,希望能对相关专业从业者以及不同领域的科研工作者将气体标准物质动态配气技术运用于实际工作提供参考。Gas reference materials serve as essential metrological standards for measuring gas components and play an indispensable role in gas detection.The preparation of gas reference materials that are highly precise,accurately quantified,and diverse has long been a challenging focus in the field of gas metrology.Over years of development,two commonly used preparation methods in the gas reference materials production are static and dynamic methods.The static method has certain application limitations due to its inherent principle.Compared with the static generation method,the dynamic generation method can produce a greater quantity of gas reference materials across a broader concentration range and offers advantages such as eliminating container wall adsorption.Currently,preparation of gas reference materials is gaining strong momentum.This article systematically summarized and elaborated the commonly used dynamic generation technologies from two aspects:principles of gas mixing and current research progress in gas metrology.It is aimed to provide reference for relevant professionals and researchers in various fields to apply dynamic gas mixing technology in their practical work.

关 键 词：计量学 配气方法 动态配气 溯源方法 标准物质 

分 类 号：O65[理学—分析化学]