2020/2015年版药典二氧化碳的指标:

　　碳氢化合物 取本品作为供试品气体，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（4mm×0.8m，80目）；柱温为110℃；进样口温度为110℃；检测器为火焰离子化检测器，温度为120℃。量取供试品气体与对照气体，注入色谱仪，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%。

　　浩瀚色谱（山东）应用技术开发有限公司，依据药典二氧化碳研制的玻璃球柱，柱效高，分离好，0.5min即可完成一次进样，在安捷伦6890,7890,7820A，8860,8890；岛津GC-14C，GC-2010，GC-2018，GC-2030；赛默飞1310，瓦里安，布鲁克，PE，磐诺上均可实现毛细管柱/填充柱的互联互通，用户满意。

　　规格:0.8m*4mm，80目

　　型号:HH-BLQ

　　The indicators for carbon dioxide in the 2020/2015 edition of the Pharmacopoeia:

　　Hydrocarbons: This product is used as the test gas, and a gas with a methane content of 0.0020% (diluted with nitrogen) is used as the control gas. The gas chromatography method (General Rule 0521) is used for testing, and a chromatography column (4mm × 0.8m, 80 mesh) filled with glass spheres is used; The column temperature is 110 ℃; The inlet temperature is 110 ℃; The detector is a flame ionization detector with a temperature of 120 ℃. Measure the test gas and control gas, inject them into the chromatograph, and measure the peak area at a purification temperature of 360 ℃ as the corresponding blank value; Measure the test gas and control gas, inject them into the chromatograph, measure the peak area, and subtract the corresponding blank value to obtain the corrected peak area. According to the external standard method, the corrected peak area should not exceed 0.0020% for hydrocarbons (calculated as methane).

　　Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a glass column based on pharmacopoeia carbon dioxide. The column has high efficiency, good separation, and can complete one injection in 0.5 minutes. It is available at Agilent 689078907820A, 88608890; Shimadzu GC-14C, GC-2010，GC-2018，GC-2030； Thermo Fisher 1310, Varian, Bruker, PE, and Panno can all achieve interconnectivity between capillary/packed columns, satisfying users.

　　Specification: 0.8m * 4mm, 80 mesh

　　Model: HH-BLQ