气相色谱法分析氢中痕量氨气  

Analysis of Trace Ammonia in Hydrogen by Gas Chromatography

作　　者：唐峰 党晓婧 郑择 孙超 郁光 方华 TANG Feng;DANG Xiaojing;ZHENG Ze;SUN Chao;YU Guang;FANG Hua(Shenzhen Power Supply Co.,Ltd.,Shenzhen 518000,China;Shanghai Huaai Chromatography Analysis Co.,Ltd.,Shanghai 200940,China)

机构地区：[1]深圳供电局有限公司,广东深圳518000 [2]上海华爱色谱分析技术有限公司,上海200940

出　　处：《低温与特气》2024年第3期43-45,共3页Low Temperature and Specialty Gases

摘　　要：为了解决氢中痕量氨气难以检测的问题,建立了一种使用氦离子化检测器的气相色谱分析方法。以5(μmol/mol)的氨气为原料,制备了不同浓度的氨气样品进行气相色谱分析。结果表明,该分析方法测得氨气的峰面积相对标准偏差<1%,检出浓度可达10(nmol/mol)。为氢中痕量氨气的精准检测提供了有效实用的解决方案,也为氢能的发展提供了新的动力。To address the challenge of detecting trace amounts of ammonia in hydrogen,a gas chromatography analysis method using a helium ion detector has been established.Ammonia gas samples with a variety of concentrations were prepared using 5(μmol/mol)ammonia as the base material and analyzed via gas chromatography.The results indicate that this analysis method offers a relative standard deviation of less than 1%for the peak area of ammonia,and the detection concentration can reach as low as 10(nmol/mol).This provides a practical solution for the precise detection of trace ammonia in hydrogen,offering new momentum for the development of hydrogen energy.

关 键 词：气相色谱法 氨气 氢气 

分 类 号：O657.7[理学—分析化学]