中国药典2020年版
二氧化碳
碳氢化合物照气相色谱法(通则0521)测定供试品气体取本品,即得对照品气体取甲烷含量为0.0020%的气体(以氮气为稀释剂)。色谱条件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℃测定法精密量取供试品气体与对照品气体,分别注入气相色谱仪,在净化温度为360℃时测得的峰面积为相应空白值;精密量取供试品气体与对照品气体,分别注入气相色谱仪,测定峰面积,减去相应空白值后的峰面积为校正峰面积限度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2020版二氧化碳研制的玻璃球柱,柱效高,峰型对称,结果满意。
名称:玻璃球柱
规格:4mm×0.8m,80目(公制尺寸);1m*1/8(80目,安捷伦,岛津,赛默飞,瓦里安,布鲁克,PE等英制尺寸)
型号:HH-BLQ
应用:中国药典2020版--二氧化碳中碳氢化合物的测定
Chinese Pharmacopoeia 2020 Edition
carbon dioxide
Hydrocarbons are determined according to gas chromatography (General Principle 0521). Take this product as the test sample gas, that is, the reference sample gas should be a gas with a methane content of 0.0020% (with nitrogen as a diluent). The chromatographic conditions use a chromatographic column filled with glass balls (4mm×0.8m, 80 mesh); the column temperature is 110°C; the inlet temperature is 110°C; the detector is a flame ionization detector, and the temperature is 120°C. The measurement method is precise Measure the test gas and reference gas and inject them into the gas chromatograph respectively. The peak area measured when the purification temperature is 360°C is the corresponding blank value; accurately measure the test gas and reference gas and inject them into the gas chromatograph. The peak area is determined by the instrument, and the peak area after subtracting the corresponding blank value is the calibrated peak area. The limit is calculated by the calibrated peak area by the external standard method, and the hydrocarbon content (calculated as methane) shall not exceed 0.0020%.
Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. developed a glass spherical column based on the 2020 edition of the Pharmacopoeia CO2, with high column efficiency, symmetrical peaks, and satisfactory results.
Name: Glass Ball Column
Specifications: 4mm×0.8m, 80 mesh (metric size); 1m*1/8 (80 mesh, Agilent, Shimadzu, Thermo Fisher, Varian, Brook, PE and other imperial sizes)
Model: HH-BLQ
Application: Chinese Pharmacopoeia 2020 Edition--Determination of Hydrocarbons in Carbon Dioxide