甲烷和二氧化碳是高纯氧中的主要杂质。通常,这些杂质可用气相色谱法测定。氧中甲烷测定较简单,一般是以纯氮为载气,或以纯氩为载气,用气相色谱FID测定。

　　如何解决高纯氧对二氧化碳的干扰，是一大课题。

　　浩瀚色谱（山东）应用技术开发有限公司，研制分离及预分离技术,使用便携式甲烷转化炉安捷伦78890氢火焰检测器检测.在实验条件下,二氧化碳RSD为0.002％;峰面积的RSD为3.2％.测定结果一致性好.此检测方法,可以完成对液氧中二氧化碳含量的检测,方法,简便易行.

　　特点:克服了大量氧对二氧化碳的干扰，灵敏度高

　　名称:便携式甲烷转化炉

　　型号:HH790-CH4-GC

　　适合于:安捷伦4890. 5890, 6890, 7890, 7820, 8860, 8890气相色谱仪上

　　HH-CH4-GC甲烷转化炉的转化效率高，安装简单，便携式，小巧玲珑，集成加热，气路，进样，温控，柱分离系统于一体；可扩展为二维/多维，反吹，切割系统。

　　Methane and carbon dioxide are the main impurities in high-purity oxygen. Usually, these impurities can be determined by gas chromatography. The determination of methane in oxygen is relatively simple, usually using pure nitrogen as the carrier gas or pure argon as the carrier gas, and using gas chromatography with FID.

　　How to solve the interference of high-purity oxygen on carbon dioxide is a major issue.

　　Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. develops separation and pre separation technologies, using a portable methane conversion furnace Agilent 78890 hydrogen flame detector for detection. Under experimental conditions, the RSD of carbon dioxide is 0.002%; The RSD of peak area is 3.2%. The consistency of the measurement results is good. This detection method can complete the detection of carbon dioxide content in liquid oxygen, which is simple and easy to implement

　　Features: Overcoming the interference of a large amount of oxygen on carbon dioxide, high sensitivity

　　Name: Portable methane conversion furnace

　　Model: HH790-CH4-GC

　　Suitable for: Agilent 4890, 5890, 6890, 7890, 7820, 8860, 8890 gas chromatographs

　　The HH-CH4-GC methane conversion furnace has high conversion efficiency, simple installation, portability, and is small and exquisite. It integrates heating, gas path, injection, temperature control, and column separation systems; Can be extended to 2D/multi-dimensional, blow back, cutting systems.