Main application areas
GDX-301 filled column is particularly suitable for the following analysis due to its characteristics:
The determination of trace moisture in organic matter: This is its most classic and widely used application. Water is weakly retained on the GDX-301 column and flows out first, which can be well separated from most organic solvents (such as alcohols, ethers, hydrocarbons) for accurate quantification.
Separation of permanent gases and light hydrocarbons: such as H ?, O ?, N ?, CO, CO ?, CH ?, C ? H ?, C ? H ?, C ? H ?, etc. It is commonly used in the fields of chemical engineering, petroleum and natural gas, and air separation to analyze these gas mixtures.
Analysis of low molecular weight polar compounds, such as methanol, ethanol, acetone, formic acid, acetic acid, etc.
Separation of some isomers: for example, isomers of xylene can also be separated under certain conditions.
Stainless Steel Packaged Column:
Material: Stainless steel (usually 304 or 316 model).
Advantages: High mechanical strength, very sturdy and durable, not easy to break, able to withstand high column front pressure. The price is relatively cheap.
Disadvantages: Some active compounds (such as amines, unsaturated hydrocarbons, and some sulfur-containing compounds) may have catalytic activity or adsorption, leading to peak tailing or sample decomposition. The inner wall is not as smooth as glass or fused silica.
Specification: Typically, the outer diameter is 1/8 inch (3.175mm) or 1/4 inch (6.35mm), and the length is generally 1 meter, 2 meters, or 3 meters.
Name: Shimadzu Stainless Steel Filled Column
Model: GDX-301
Specification: 2m * 4MM, 60-80 mesh
Maximum operating temperature: 240 ° C
Application: Gas chromatography analysis of acetylene hydrogen chloride, sulfides (such as H ? S, COS), and some high boiling point compounds, and able to tolerate certain moisture
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed and produced the "GDX-301 Column Application Shimadzu GC2010" GDX-301 packing material, which has outstanding performance in the following aspects:
Acetylene and hydrogen chloride analysis: This is one of its classic applications.
Sulfide analysis: For example, hydrogen sulfide (H ? S) and carbonyl sulfide (COS) in water gas can obtain reproducible and accurate results even if the sample contains water.
Analysis of substances with higher boiling points.
Good water resistance, can be used for analysis of some water containing samples
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GDX-301:
類型： 這是一種高分子多孔微球固定相，屬于聚合物固定相（通常是苯乙烯-二乙烯苯的共聚物）。
特點：
非極性： GDX系列中，GDX-301屬于弱極性或中等極性（相較于GDX-101/102等非極性型號）。
多孔結構： 具有均勻的孔結構和較大的比表面積，分離機理基于尺寸排阻和吸附作用。
熱穩定性好： 最高使用溫度通常可達250°C左右。
憎水性： 對水分子吸附性弱，水峰出峰早且峰形尖銳。
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主要應用領域
GDX-301填充柱因其特性，特別適用于以下分析：
有機物中微量水分的測定： 這是其最經典和廣泛的應用。水在GDX-301柱上保留很弱，先流出來，可以與大多數有機溶劑（如醇類、醚類、烴類）很好地分離，從而準確定量。
永久氣體和輕烴的分離： 如H?, O?, N?, CO, CO?, CH?, C?H?, C?H?, C?H?等。在化工、石油天然氣、空分等領域常用于分析這些氣體混合物。
低分子量極性化合物的分析： 如甲醇、乙醇、丙酮、甲酸、乙酸等。
一些異構體的分離： 例如，二甲苯異構體在一定條件下也能得到分離。
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不銹鋼填充柱 (Stainless Steel Packed Column):
材質： 不銹鋼（通常是304或316型號）。
優點： 機械強度高，非常堅固耐用，不易折斷，能承受較高的柱前壓。價格相對便宜。
缺點： 對某些活性化合物（如胺類、不飽和烴、一些含硫化合物）可能具有催化活性或吸附性，導致峰拖尾或樣品分解。內壁光潔度不如玻璃或熔融石英。
規格： 通常外徑為1/8英寸（3.175mm）或1/4英寸（6.35mm），長度一般為1米、2米或3米。
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名稱：島津不銹鋼填充柱
型號：GDX-301
規格：2m*4MM,60-80目
zui高使用溫度：240°C
應用：乙炔氯化氫、硫化物（如H?S、COS）以及一些較高沸點化合物的氣相色譜分析，并能耐受一定的水分
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浩瀚色譜（山東）應用技術開發有限公司,，研制生產《GDX-301色譜柱應用島津GC2010》GDX-301填料在以下方面表現突出：
乙炔和氯化氫分析：這是其經典應用之一。
硫化物分析：如水煤氣中的硫化氫（H?S）和羰基硫（COS），即便樣品含水，也能獲得重復性和準確性較好的結果。
較高沸點物質的分析。
耐水性較好，可用于一些含水樣品的分析
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