GDX-301的独特性质使其在以下分析中表现出色:
硫化物气体分析:这是GDX-301非常经典和重要的应用领域。它能有效分离和测定多种硫化物,如硫化氢(H₂S)、羰基硫(COS)、二硫化碳(CS₂)、二氧化硫(SO₂) 等。特别适用于水煤气、天然气、工业过程气等复杂基质中硫化物的分析,即便样品中含有水分,也能获得较好的重复性和准确性。
乙炔和氯化氢分析:在氯乙烯生产工艺中,GDX-301被广泛用于追踪未反应的乙炔和监控氯化氢的纯度。需要注意的是,在此类应用中,通常需要在色谱柱前加装氯化氢吸收管(如填充碳酸钠),以去除大量HCl,保护色谱柱和仪器不受腐蚀。
一些较高沸点化合物分析:GDX-301也适用于分析一些沸点相对较高的化合物。
痕量物质富集:凭借其大的比表面积,GDX-301可作为富集柱或萃取色层柱的吸附剂,用于富集水中的痕量芳烃化合物、废水中的痕量铅和镉等,实现痕量物质的预浓缩与净化
GDX-301的主要特性:
特性项目 |
参数或描述 |
|
化学组成 |
二乙烯苯、三氯乙烯共聚物 |
|
外观 |
白色多孔微球 |
|
极性 |
弱极性 |
|
最高使用温度 |
250℃ |
|
比表面积 |
460 m²/g |
|
堆密度 |
0.24 g/mL |
|
常见规格 |
60-80目, 80-100目等 |
|
特色化学稳定性 |
良好的疏水性、耐腐蚀性、耐辐射性 |
名称:岛津不锈钢填充柱
型号:GDX-301
规格:2m*4MM,60-80目
最高使用温度:240°C
应用:硫化物气体分析、乙炔/氯化氢分离以及含水样品中的有机物分析
GDX-301是一种应用颇为广泛的高分子多孔微球(Gao Fen Zi Duo Kong Wei Qiu,简称GDX)色谱填料,属于气相色谱填充柱中的一种经典固定相。
浩瀚色谱(山东)应用技术开发有限公司,研制《GDX-301填充色谱柱应用岛津GC2014》:GDX-301是一款弱极性、耐高温、疏水性强、化学稳定性好的高分子多孔微球色谱填料。它在硫化物气体分析、乙炔/氯化氢分离以及含水样品中的有机物分析方面具有显著优势。
应用:
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





The unique properties of GDX-301 make it perform well in the following analyses:
Sulfide gas analysis: This is a very classic and important application area of GDX-301. It can effectively separate and determine various sulfides, such as hydrogen sulfide (H ₂ S), carbonyl sulfide (COS), carbon disulfide (CS ₂), sulfur dioxide (SO ₂), etc. Especially suitable for the analysis of sulfides in complex matrices such as water gas, natural gas, and industrial process gas, even if the sample contains moisture, it can achieve good repeatability and accuracy.
Acetylene and hydrogen chloride analysis: GDX-301 is widely used in the production process of vinyl chloride to track unreacted acetylene and monitor the purity of hydrogen chloride. It should be noted that in such applications, it is usually necessary to install a hydrogen chloride absorption tube (such as filling with sodium carbonate) before the chromatographic column to remove a large amount of HCl and protect the chromatographic column and instrument from corrosion.
Analysis of some compounds with relatively high boiling points: GDX-301 is also suitable for analyzing compounds with relatively high boiling points.
Trace substance enrichment: With its large specific surface area, GDX-301 can be used as an adsorbent for enrichment columns or extraction chromatography columns to enrich trace aromatic compounds in water, trace lead and cadmium in wastewater, etc., achieving pre concentration and purification of trace substances
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