4mm*0.8m药典二氧化碳 玻璃球为填料的色谱柱（0.8m×4mm，80目）

Chromatographic column packed with glass ball (0.8m × 4mm, 80 meshes)

Chromatographic column packed with glass ball (0.8m × 4mm, 80 meshes) Details:

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

Name: glass ball filled column

Specification: 0.8m * 4mm, 80 meshes

Model: HH-BLQ

Maximum operating temperature: 320 ° C

Taking hydrocarbon impurities in medical carbon dioxide as an example, Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses two different detection methods provided in European Pharmacopoeia to determine impurities. The comparison results show that the impurity detection limits of chromatographic, spectroscopic and other instrumental methods are lower, and the repeatability and intermediate precision are better. The gas detection tube system is simple to operate, with less gas consumption, and is suitable for detection needs that do not require high detection limits. Instrument method and detection tube method are both practical detection methods for impurities in medical carbon dioxide, and different methods can be selected for detection according to needs.

Chromatographic column packed with glass ball (0.8m × 4mm, 80 mesh) test spectrum: