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（山东）应用技术开发有限公司，研制的HH-NH3.H2O氨专用色谱固定相，装柱测试高纯氨，柱效高，峰型对称，适用于工业氨水，高纯氨气，燃料氢中微量氨，合成氨，焦炉煤气中氨气，燃气在氨气等的分析测定，实验结果满意。

　　气相色谱固定相 NH3.H2O

　　粒度:80-100目 25g

　　温度:200°C

　　编号:20240202002

　　配套于安捷伦，岛津，赛默飞，瓦里安，布鲁克，pE等。

　　The analysis method for ammonia content in urban gas currently follows the GB12210-90 standard. The gas flow rate during sampling is specified to be 0.25-0.5L/min, and the absorbed ammonia amount is required to be controlled within the range of 2-30mg. When the ammonia content in the gas is 50mg/m3, the average sampling speed is 0.38L/min, and the average absorbed ammonia amount is 16mg, then 0.32m3 of gas needs to be taken. 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, When the ammonia content in the gas is low (often<20mg/m3), a longer sampling time is required

　　The HH-NH3.H2O ammonia specific chromatographic stationary phase developed by Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has been tested for high-purity ammonia with high column efficiency and symmetrical peak shape. It is suitable for the analysis and determination of trace ammonia in industrial ammonia water, high-purity ammonia gas, fuel hydrogen, synthetic ammonia, ammonia in coke oven gas, and ammonia in gas. The experimental results are satisfactory.

　　Gas chromatography stationary phase NH3. H2O

　　Particle size: 80-100 mesh 25g

　　Temperature: 200 ° C

　　Number: 20240202002

　　Supported by Agilent, Shimadzu, Thermo Fisher, Varian, Brooke, pE, etc.