5Å分子筛 空气中氧气，氮气测定填充柱

名称：填充柱

规格：3m*1/8

型号：5Å分子筛

应用： 气相色谱法测定环境空气中甲烷浓度

空气是指地球大气层中的混合气体，因此空气属于混合物，它主要由氮气、氧气、稀有气体（氦、氖、氩、氪、氙、氡），二氧化碳以及其他物质（如水蒸气、杂质等）组合而成。其中氮气的体积分数约为78%，氧气的体积分数约为21%，稀有气体（氦、氖、氩、氪、氙、氡）的体积分数约为0.934%，二氧化碳的体积分数约为0.04%（2017年数据），其他物质（如水蒸气、杂质等）的体积分数约为0.002%。空气的成分不是固定的，随着高度的改变、气压的改变，空气的组成比例也会改变。但是长期以来人们一直认为空气是一种单一的物质，直到后来法国科学家拉瓦锡通过实验首先得出了空气是由氧气和氮气组成的结论。19世纪末，科学家们又通过大量的实验发现，空气里还有氦、氩、氙等稀有气体。

浩瀚色谱（山东）应用技术开发有限公司，采用新技术，研发的5Å分子筛填充柱测定空气中O2,N2，柱效高，分离好，结果满意。


空气中氧气，氮气测定填充柱  测试谱图：

Packed column for determination of oxygen and nitrogen in the air
Packed column for determination of oxygen and nitrogen in the air Details:



Name: Packed column

Specification: 3m*1/8

Model: 5Å molecular sieve

Application: Determination of methane concentration in ambient air by gas chromatography

Air, the "gas of life" we breathe every day, is layered on the surface of the earth, transparent, colorless and odorless. It is mainly composed of nitrogen and oxygen and has an important impact on human survival and production.
Air refers to the mixed gas in the earth's atmosphere, so air is a mixture, which is mainly composed of nitrogen, oxygen, rare gases (helium, neon, argon, krypton, xenon, radon), carbon dioxide and other substances (such as water vapor, impurities, etc.) Become. The volume fraction of nitrogen is about 78%, the volume fraction of oxygen is about 21%, the volume fraction of rare gases (helium, neon, argon, krypton, xenon, radon) is about 0.934%, and the volume fraction of carbon dioxide is about 0.04% (2017 data), the volume fraction of other substances (such as water vapor, impurities, etc.) is about 0.002%. The composition of air is not fixed. As altitude changes and air pressure changes, the composition ratio of air will also change. But people have long believed that air is a single substance. Later, French scientist Lavoisier first came to the conclusion that air is composed of oxygen and nitrogen through experiments. At the end of the 19th century, scientists discovered through a large number of experiments that there are rare gases such as helium, argon, and xenon in the air.

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd., using new technology, developed a 5Å molecular sieve packed column for the determination of O2 and N2 in the air. The column efficiency is high, the separation is good, and the results are satisfactory.


Packed column for determination of oxygen and nitrogen in the air Test spectrum: