本文件規定了采用熱導檢測器-便攜式氣相色譜儀在線測定天然氣中加臭劑四氫噻吩含量的原理、試劑與材料、儀器、取樣、測定步驟、計算方法和精密度要求。
本文件適用于天然氣中四氫噻吩含量的測定，測定范圍5 mg/m3～200 mg/m3。
浩瀚色譜（山東）應用技術開發有限公司，采用氣相色譜法建立了天然氣中四氫噻吩的分析方法該方法中使用了專用毛細管色譜柱和氫火焰檢測器進行檢測,繪制四氫噻吩工作曲線,四氫噻吩的*低檢出限能到達0.5mg· m-3.經6次的重復測定,其相對標準偏差小于0.02％.該方法用于天然氣中四氫噻吩的測定,取得了令人滿意的結果.
名稱·:毛細管柱
規格:30m*0.32mm
型號:HH-THT30
應用:天然氣中四氫噻吩測定 氣相色譜法
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