PE药典二氧化碳分析玻璃球柱2020年版

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%。

名称：色谱柱
固定相：玻璃球为填料
规格：4mm×0.8m,80目
型号：HH-BLQ08
应用：2020年版药典二氧化碳中碳氢化合物的测定
 
Chinese Pharmacopoeia 2020 Edition
carbon dioxide
Hydrocarbons are measured by gas chromatography (general rule 0521) and the gas of the test product is taken from this product, that is, the gas with a methane content of 0.0020% is obtained as the reference gas (with nitrogen as the diluent). Chromatographic conditions: Use a chromatographic column (4mm × 0.8m, 80 mesh) with glass balls as filler; 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. Measure the test gas and the reference gas, inject them into the gas chromatograph respectively, and the peak area measured when the purification temperature is 360 ℃ is the corresponding blank value; accurately measure the test gas and the reference gas, and inject them into the gas chromatograph respectively. Instrument, measure the peak area, and the peak area after subtracting the corresponding blank value is the calibration peak area limit. Calculate the calibration peak area according to the external standard method, and the hydrocarbon content (in terms of methane) shall not exceed 0.0020%.

Name: chromatographic column
Stationary phase: glass spheres as filler
Specifications: 4mm×0.8m, 80 mesh
Model: HH-BLQ08
Application: Determination of Hydrocarbons in Carbon Dioxide of the 2020 Pharmacopoeia