单TCD检测器气相色谱法快速测定天然气组分  

Rapid Determination of Natural Gas Components by Gas Chromatography with Single TCD Detector

作　　者：纪艳艳 王祥科 钱阿慧 JI Yanyan;WANG Xiangke;QIAN Ahui(Lansis Instrument(Shanghai)Co.,Ltd.,Shanghai 201702,China)

机构地区：[1]朗析仪器(上海)有限公司,上海201702

出　　处：《低温与特气》2024年第2期28-32,共5页Low Temperature and Specialty Gases

摘　　要：天然气是绿色高效的清洁能源,与可再生能源形成良性互补,充分认识天然气组分可以推进天然气的利用。以天然气标准物质为对象研究色谱仪器条件对天然气分析的影响,包括色谱柱类型、阀切时间、柱箱温度等方面,建立了良好的分析方法,用外标法确定了天然气各组分的保留时间。使用该气相色谱法测定天然气组分具有重复性好、准确度高和分析时间短等特点,可为分析检测天然气成分提供重要参考,对天然气生产和运输质量控制具有重要意义。Natural gas is a green,efficient and clean energy,which is complementary to renewable energy.Fully understanding the composition of natural gas can promote the utilization of natural gas.Taking natural gas reference material as the object,the influence of chromatographic instrument conditions on natural gas analysis was studied,including column type,valve cutting time,column box temperature and so on.A good analysis method was established,and the retention time of natural gas components was determined by external standard method.Using this gas chromatography to determine natural gas components has the characteristics of good repeatability,high accuracy and short analysis time,which can provide important reference for analyzing and detecting natural gas components and is of great significance to the quality control of natural gas production and transportation.

关 键 词：天然气组分 气相色谱法 气路系统 标准气体 

分 类 号：O657.7[理学—分析化学]