5埃分子筛（五A Molecular Sieve）是一种化学物质，具有特定的孔径和吸附能力。其分子式为3/4CaO·1/4Na2O·Al2O3·2SiO2·9/2H2O，孔径约5埃（1A=0.1纳米），即约0.48~0.57nm。它是一种碱金属硅铝酸盐，属于A型晶体结构的钙型。在使用过程中，应注意避免分子筛直接暴露于空气中，以免影响其吸附性能。五A分子筛的再生过程通常涉及脱除吸附的分子，如通过加热或使用脱附剂等方式进行。五A分子筛是一种具有优异吸附性能和广泛应用领域的化学物质，在天然气处理、气体分离、石油加工等领域发挥着重要作用


五A分子筛填充柱是气相色谱中用于分离O₂、N₂、CH₄、CO等永jiu性气体的“工作母机”级经典工具。 它的优势在于专一性强、成本低、耐用。但其致命的弱点是怕水和怕CO₂/重烃，因此成功应用的关键在于的样品前处理和系统维护。在现代实验室中，它常作为专用分析仪或多维GC系统的一部分，继续发挥着不可替代的作用。

 

名称：5A填充柱

规格：5mm（OD)*4mm(ID)*3m，60-80Mesh

zui高使用温度：320°C

应用：H2，O2,，N2，CO，CH4的分离；氢，氧，氮，一氧化碳，甲烷
 

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

 

5 Å Molecular Sieve is a chemical substance with specific pore size and adsorption capacity. Its molecular formula is 3/4CaO · 1/4Na2O · Al2O3 · 2SiO2 · 9/2H2O, with a pore size of about 5 angstroms (1A=0.1 nanometers), which is about 0.48-0.57nm. It is an alkali metal silicate aluminum salt belonging to the calcium type of A-type crystal structure. During use, attention should be paid to avoiding direct exposure of the molecular sieve to air to avoid affecting its adsorption performance. The regeneration process of 5A molecular sieve usually involves removing adsorbed molecules, such as by heating or using desorption agents. 5A molecular sieve is a chemical substance with excellent adsorption performance and wide application fields, playing an important role in natural gas processing, gas separation, petroleum processing and other fields
The 5A molecular sieve packed column is a classic tool at the "working mother machine" level used in gas chromatography for separating permanent gases such as O ₂, N ₂, CH ₄, CO, etc. Its advantages lie in strong specificity, low cost, and durability. But its fatal weakness is its fear of water and CO ₂/heavy hydrocarbons, so the key to successful application lies in extreme sample pretreatment and system maintenance. In modern laboratories, it is often used as a dedicated analyzer or part of multidimensional GC systems, continuing to play an irreplaceable role.
Name: 5A filled column
Specification: 5mm (OD) * 4mm (ID) * 3m, 60-80Mesh
Maximum operating temperature: 320 ° C
Application: Separation of H2, O2, N2, CO, CH4; Hydrogen, oxygen, nitrogen, carbon monoxide, methane
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