核心难点：为什么氧和氩难分离？
沸点极其接近：
氧气沸点：-183 °C
氩气沸点：-186 °C
两者沸点仅相差3°C，这意味着在传统的基于沸点差（分配平衡）的色谱柱上，它们的保留时间非常接近，极易重叠成一个峰。
分子性质相似：
两者都是非极性、惰性小分子。
它们的分子大小和与固定相的相互作用力（主要是范德华力）差异极小。
因此，使用普通的色谱柱（如SE-30、OV-1等非极性柱）无法分离氧和氩。
 

为此，浩瀚色谱（山东）应用技术开发有限公司，研制生产《氧氩分离专用色谱柱应用安捷伦7890B》，氧氩得到有效分离，柱效高，结果满意。

 

名称：HH-O2AR填充柱

规格：3m*1/8，60-80Mesh

zui高使用温度：180°C

应用：氧氩的色谱分离

 

适用于：

安捷伦490在线/便携，4890,5890,6890,7820,7890,8860,8890

岛津GC-14C，GC-2010，GC-2014，GC-2030

赛默飞1310,1300,1610,1600

瓦里安3800系列

布鲁克PE580,590,680,690

磐诺A90，福立GC9790，华爱，天瑞，天美，GC7900，川仪，北分瑞利，东西电子，鲁南瑞虹，捷岛/科晓

Core difficulty: Why is it difficult to separate oxygen and argon?
The boiling point is extremely close:
Boiling point of oxygen: -183 ° C
Boiling point of argon gas: -186 ° C
The boiling points of the two are only 3 ° C apart, which means that on traditional chromatography columns based on boiling point difference (distribution equilibrium), their retention times are very close and easily overlap into a peak.
Molecular properties are similar:
Both are non-polar and inert small molecules.
Their molecular size and interaction forces with the stationary phase (mainly van der Waals forces) differ very little.
Therefore, using ordinary chromatographic columns (such as SE-30, OV-1 and other non-polar columns) cannot separate oxygen and argon.
To this end, Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed and produced the "Agilent 7890B Application of Oxygen Argon Separation Special Chromatography Column", which effectively separates oxygen and argon with high column efficiency and satisfactory results.
Name: HH-O2AR Filled Column
Specification: 3m * 1/8, 60-80 Mesh
Maximum operating temperature: 180 ° C
Application: Chromatographic separation of oxygen and argon
Suitable for:
Agilent 490 online/portable, 48905890689088608890
Shimadzu GC-14C, GC-2010, GC-2014, GC-2030
Thermo Fisher Scientific 1310130016101600
Varian 3800 Series
Brooke PE580590680690
Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900， Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao