Formic acid (HCOOH) and acetic acid (CH3 COOH) are both strong polar short chain carboxylic acids.
On this polar column, their peak order is usually: formic acid peaks first, followed by acetic acid. Because the boiling point of acetic acid (118 ° C) is higher than formic acid (100.8 ° C), and the carbon chain is longer, the interaction with the stationary phase is stronger.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. proposed a gas chromatography analysis method for determining the formic acid content in industrial glacial acetic acid Using sebacic acid/GDX103 as the stationary phase, a thermal conductivity detector was employed, and ethyl acetate was used as the internal standard for quantification. The results obtained by the internal standard method were very close to those obtained by chemical analysis, with a small detection amount of up to 0.13 μ g, demonstrating satisfactory accuracy and precision.
Name: Stainless Steel Filled Column
Fixed liquid: sebacic acid
Carrier: GDX-103
Fixed liquid: carrier=7:100
Material: Stainless Steel/Glass
Specification: 2m * 1/8
Application: Shimadzu Shimadzu GC14C, GC=2010, 2014, 2030
Application: GB_T 1628.5-2000 Determination of formic acid content in industrial acetic acid Gas chromatography method
GB/T1628-2008 Industrial Glacial Acetic Acid
GB/T 1628-2020 Industrial Glacial Acetic Acid
 
 
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

甲酸（HCOOH）和乙酸（CH₃COOH）都是强极性的短链羧酸。

在这根极性柱上，它们的出峰顺序通常是：甲酸先出峰，乙酸后出峰。因为乙酸的沸点（118°C）高于甲酸（100.8°C），且碳链更长，与固定相的相互作用更强。

浩瀚色谱(山东)应用技术开发有限公司，提出了测定工业冰乙酸中甲酸含量的气相色谱分析方法.以癸二酸/GDX103为固定相,采用热导检测器,用乙酸乙酯作内标物的内标法定量,所测结果与化学分析法结果十分接近,*小检出量可达0.13μg,具有较满意的准确度和精密度。

名称：不锈钢填充柱
固定液：癸二酸
担体：GDX-103
固定液：担体=7:100
材质：不锈钢/玻璃
规格：2m*1/8
应用：Shimadzu岛津GC14C，GC=2010,2014,2030
应用：GB_T 1628.5-2000 工业冰乙酸中甲酸含量的测定 气相色谱法

GB /T1628-2008工业用冰乙酸

GB∕T 1628-2020 工业用冰乙酸

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

滕州市浩瀚色谱仪器技术服务有限公司
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