城市燃气中氨含量的分析方法上,现在执行的是GB12210-90标准.其中取样时燃气流速规定在0.25～0.5L/min,并要求吸收的氨量控制在 2～30mg范围内.当燃气中的氨含量在50mg/m3。

　　煤气月平均含氨量在24.3～177.3mg/m3),平均取样 速度为0.38L/min,平均吸收的氨量为16mg,则需取0.32m3煤气.取样时间为320/0.38=842min,合14个多小时.由此可见, 取样需要的时间很长,而当煤气中氨含量较低时(经常有<20mg/m3),则需要采样时间更长.

　　浩瀚色谱研制气相色谱法测定焦炉煤气中氨含量，柱效高，分离好，煤气成分不干扰，峰型对称。

　　名称:高纯氨专用柱

　　型号:HH-NH3-VI

　　规格:6m*1/8

　　使用温度:200°C

　　编号:20240303003

　　应用:焦炉煤气中氨的测定 气相色谱法

　　The current standard for analyzing the ammonia content in urban gas is GB12210-90. The gas flow rate during sampling is specified to be 0.25-0.5L/min, and the amount of absorbed ammonia is required to be controlled within the range of 2-30mg. When the ammonia content in the gas is 50mg/m3, the sampling rate should be increased to 0.5L/min.

　　The average ammonia content in gas is 24.3-177.3mg/m3, the average sampling speed is 0.38L/min, and the average absorbed ammonia amount is 16mg. Therefore, 0.32m3 of gas needs to be sampled. The sampling time is 320/0.38=842min, which is more than 14 hours. It can be seen that the sampling time is very long, and when the ammonia content in gas is low (often <20mg/m3), the sampling time needs to be longer.

　　HaoHan Chromatography developed a gas chromatography method for determining the ammonia content in coke oven gas, with high column efficiency, good separation, no interference from gas components, and symmetrical peak shape.

　　Name: High purity ammonia column

　　Model: HH-NH3-VI

　　Specification: 6m*1/8

　　Service temperature: 200°C

　　No.: 20240303003

　　Application: determination of ammonia in coke oven gas by gas chromatography