天然氣中四氫噻吩在線氣相色譜儀測定，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯苯，植物油，增塑劑，塑化劑，過氧化物

天然氣中四氫噻吩在線氣相色譜儀測定
天然氣中四氫噻吩在線氣相色譜儀測定 詳細信息：

毛細管色譜柱固定相：14%氰丙基苯基-86%二甲基聚硅氧烷
色譜柱長度：4米
色譜柱內徑：0.10mm
檢測器：TCD

實驗的步驟順序為連接氣體標準物質和色譜儀、氣體標準物質測定、連接取樣點和色譜儀、天然氣測定，而天然氣的測定結果也規定應當在操作條件不變的前提下，連續測定天然氣樣品多次，直到連續兩次測定結果的重復性在規定的范圍內，才能取兩次測定結果的平均值作為天然氣樣品測定的*終結果。

使用的便攜式氣相色譜儀的進樣系統應當選用對四氫噻吩無吸附性或經惰性化處理的材料，而色譜柱的材料也應對四氫噻吩呈惰性和無吸附性，或者色譜柱內壁要經惰性化處理，柱內填充物也可以對被檢測的四氫噻吩進行有效分離。

取樣，進樣，分離，測定，TCD檢測器，便攜式氣相色譜儀。


天然氣中四氫噻吩在線氣相色譜儀測定  測試譜圖：



Determination of tetrahydrothiophene in natural gas by on-line gas chromatograph
Determination of tetrahydrothiophene in natural gas by on-line gas chromatograph

Capillary column stationary phase: 14% cyanopropyl phenyl-86% dimethyl polysiloxane
Column length: 4 meters
Inner diameter of chromatographic column: 0.10mm
Detector: TCD

The sequence of steps in the experiment is to connect the gas reference material and the chromatograph, determine the gas reference material, connect the sampling point and the chromatograph, and determine the natural gas. The natural gas measurement result also stipulates that the natural gas samples should be continuously measured under the premise of the same operating conditions. Until the repeatability of the two consecutive measurement results is within the specified range, the average of the two measurement results can be taken as the final result of the natural gas sample measurement.

The sampling system of the portable gas chromatograph used should be made of materials that are non-adsorbent or inertized to tetrahydrothiophene, and the material of the chromatographic column should also be inert and non-adsorbent to tetrahydrothiophene, or the inner wall of the chromatographic column should be Inert treatment, the packing in the column can also effectively separate the detected tetrahydrothiophene.

Sampling, injection, separation, determination, TCD detector, portable gas chromatograph.


Determination of tetrahydrothiophene in natural gas by on-line gas chromatograph Test spectrum: