GC- 天然气中四氢噻吩在线气相色谱仪测定

天然气中四氢噻吩在线气相色谱仪测定，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，增塑剂，塑化剂，过氧化物

天然气中四氢噻吩在线气相色谱仪测定
天然气中四氢噻吩在线气相色谱仪测定 详细信息：

毛细管色谱柱固定相：14%氰丙基苯基-86%二甲基聚硅氧烷
色谱柱长度：4米
色谱柱内径：0.10mm
检测器：TCD

实验的步骤顺序为连接气体标准物质和色谱仪、气体标准物质测定、连接取样点和色谱仪、天然气测定，而天然气的测定结果也规定应当在操作条件不变的前提下，连续测定天然气样品多次，直到连续两次测定结果的重复性在规定的范围内，才能取两次测定结果的平均值作为天然气样品测定的*终结果。

使用的便携式气相色谱仪的进样系统应当选用对四氢噻吩无吸附性或经惰性化处理的材料，而色谱柱的材料也应对四氢噻吩呈惰性和无吸附性，或者色谱柱内壁要经惰性化处理，柱内填充物也可以对被检测的四氢噻吩进行有效分离。

取样，进样，分离，测定，TCD检测器，便携式气相色谱仪。


天然气中四氢噻吩在线气相色谱仪测定  测试谱图：



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: