8L 药典二氧化碳标准气体碳氢化合物

药典二氧化碳标准气体碳氢化合物，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，6号溶剂残留，裂解进样器

药典二氧化碳标准气体碳氢化合物
药典二氧化碳标准气体碳氢化合物 详细信息：

名称：标气
应用：药典二氧化碳中碳氢化合物
规格：8L/4L
浓度：0.0020%甲烷/N2
减压阀：可选

碳氢化合物 取本品作为供试品；取甲烷含量为0.0020%的气体（以氮气为稀释剂）作为对照气体，照气相色谱法（通则0521）试验，用玻璃球为填料的色谱柱（0.8m×4mm，80目）；柱温为110℃；进样口温度为110℃；检测器温度为120℃。量取供试品气体与对照气体，注入气相色谱仪，在净化温度为360℃时测得的峰面积为相应空白值；量取供试品气体与对照气体，注入气相色谱仪，测定峰面积，减去相应空白值后的峰面积为校正峰面积。按外标法以校正峰面积计算，含碳氢化合物（以甲烷计）不得过0.0020%。

药典二氧化碳标准气体碳氢化合物 测试谱图：



Pharmacopoeia carbon dioxide standard gas hydrocarbon
Pharmacopoeia carbon dioxide standard gas hydrocarbons Details:

Name: Standard Gas
Application: Hydrocarbons in pharmacopoeia carbon dioxide
Specification: 8L/4L
Concentration: 0.0020% methane/N2
Pressure reducing valve: optional

Hydrocarbons: Take this product as the test sample; take the gas with a methane content of 0.0020% (with nitrogen as the diluent) as the control gas, and test according to the gas chromatography (General Rule 0521), using a glass ball as the packing column (0.8 m×4mm, 80 mesh); column temperature is 110℃; injection port temperature is 110℃; detector temperature is 120℃. Measure the test gas and control gas and inject them into the gas chromatograph. The peak area measured when the purification temperature is 360℃ is the corresponding blank value; measure the test gas and control gas and inject them into the gas chromatograph to determine the peak area , The peak area after subtracting the corresponding blank value is the corrected peak area. According to the external standard method to calibrate the peak area, the hydrocarbon (calculated as methane) shall not exceed 0.0020%.

Pharmacopoeia carbon dioxide standard gas hydrocarbon test spectrum: