本文件规定了采用热导检测器-便携式气相色谱仪在线测定天然气中加臭剂四氢噻吩含量的原理、试剂与材料、仪器、取样、测定步骤、计算方法和精密度要求。

　　本文件适用于天然气中四氢噻吩含量的测定，测定范围5 mg/m3～200 mg/m3。

　　浩瀚色谱（山东）应用技术开发有限公司，采用气相色谱法建立了天然气中四氢噻吩的分析方法该方法中使用了专用毛细管色谱柱和氢火焰检测器进行检测,绘制四氢噻吩工作曲线,四氢噻吩的*低检出限能到达0.5mg· m-3.经6次的重复测定,其相对标准偏差小于0.02％.该方法用于天然气中四氢噻吩的测定,取得了令人满意的结果.

　　名称·:毛细管柱

　　规格:30m*0.32mm

　　型号:HH-THT30

　　应用:天然气中四氢噻吩测定 气相色谱法

　　This document specifies the principle, reagents and materials, instruments, sampling, measurement steps, calculation methods, and precision requirements for online determination of the content of odorant tetrahydrothiophene in natural gas using a thermal conductivity detector portable gas chromatograph.

　　This document is applicable for the determination of tetrahydrothiophene content in natural gas, with a measurement range of 5 mg/m3 to 200 mg/m3.

　　Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established an analysis method for tetrahydrothiophene in natural gas using gas chromatography. The method uses a dedicated capillary chromatography column and a hydrogen flame detector for detection, and the working curve of tetrahydrothiophene is plotted. The lowest detection limit of tetrahydrothiophene can reach 0.5mg · m-3. After 6 repeated determinations, the relative standard deviation is less than 0.02%. This method has been used for the determination of tetrahydrothiophene in natural gas and has achieved satisfactory results

　　Name: Capillary Column

　　Specification: 30m * 0.32mm

　　Model: HH-THT30

　　Application: Gas chromatography method for the determination of tetrahydrothiophene in natural gas