浩瀚中国药典2020年版二氧化碳分析玻璃球色谱柱HH-BLQ

中国药典2020年版

二氧化碳

性状

本品为无色气体;无臭;水溶液显弱酸性反应。本品1容在常压20℃时,能溶于水约1容中。

鉴别

(1)取本品,通入氢氧化钡试液中,即生成白色沉淀;沉淀能在醋酸中溶解并发生泡沸。(2)本品能使火焰熄灭。(3)本品的红外光吸收图谱应与对照的图谱(图1)一致(通则0402)

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：填充柱
规格：1m*1/8，80目
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
适用于：安捷伦7890,岛津2010,2014，赛默飞TRACE 1310 
 

Chinese Pharmacopoeia 2020 Edition
carbon dioxide
Traits
This product is a colorless gas; odorless; the aqueous solution shows a weak acid reaction. This product can dissolve in about 1 volume of water when 1 volume is at 20℃ under normal pressure.

Identify
(1) Take this product and pass it into the barium hydroxide test solution to form a white precipitate; the precipitate can be dissolved in acetic acid and boiled. (2) This product can extinguish the flame. (3) The infrared light absorption spectrum of this product should be consistent with the control spectrum (Figure 1) (General Rule 0402)

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). Chromatographic conditions use a chromatographic column filled with glass balls (4mm×0.8m, 80 mesh); the column temperature is 110℃; the temperature of the injection port is 110℃; the detector is a flame ionization detector, and the temperature is 120℃. The 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 limit. The peak area is calculated by the external standard method, and the hydrocarbon content (calculated as methane) shall not exceed 0.0020%.

Name: Packed column
Specification: 1m*1/8, 80 mesh
Model: HH-BLQ
Application: Determination of Hydrocarbons in Carbon Dioxide of Chinese Pharmacopoeia 2020 Edition
Applicable to: Agilent 7890, Shimadzu 2010, 2014, Thermo Fisher TRACE 1310