浩瀚色谱（山东）应用技术开发有限公司建立了利用气相色谱仪测定乙烯（C2H4）、乙炔（C2H2）含量的方法。通过对色谱柱、柱温、流速以的优化,确定了色谱柱为Porapak N柱乙烯和乙炔分别在0.52～5089,1.06～5060μmol/mol范围内线性关系良好,相关系数均大于0.998。乙烯和乙炔的检出限（LOD,S/N=3）分别为0.14和0.25μmol/mol,平均回收率为106.6%～113.8%,相对标准偏差（RSDs）为0.56%～1.6%。,可以准确测定高浓度乙炔中痕量乙烯的含量,能满足生物固氮研究中乙炔还原法的测定需求。

 

Porapak N是由苯乙稀、二乙烯苯和极性单体共聚而成的白色粉末，

视密度0.39g/ml，

比表面积437 m2/g，

极性中等，

zui高使用温度为190 ℃，

也具有Porapak

Q相类似的分离性能。使用前需用氮气或氩气做载气在150 ℃左右的温度下老化24 h。
能有效分离C1～C2烃类气体及H2、CO2等，甲quan溶液，氨

 

粒度：80-100目

包装：29g

产地：美国

现货：

应用：
1.工业甲醛溶液分析
2.二氧化碳，硫化氢，水分的测定
3.液化气二甲醚
4.轻烃，甲烷，乙烯，乙烷，乙炔的测定

 
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for determining the content of ethylene (C2H4) and acetylene (C2H2) using gas chromatography. By optimizing the chromatographic column, column temperature, and flow rate, it was determined that the Porapak N column had good linear relationships for ethylene and acetylene in the ranges of 0.52-5089 and 1.06-5060 μ mol/mol, respectively, with correlation coefficients greater than 0.998. The detection limits (LOD, S/N=3) for ethylene and acetylene are 0.14 and 0.25 μ mol/mol, respectively, with an average recovery rate of 106.6% to 113.8% and relative standard deviations (RSDs) of 0.56% to 1.6%., It can accurately determine the trace ethylene content in high concentration acetylene, which can meet the determination requirements of acetylene reduction method in biological nitrogen fixation research.




Porapak N is a white powder formed by copolymerization of styrene, divinylbenzene, and polar monomers,



Visual density 0.39g/ml,



Specific surface area 437 m2/g,



Medium polarity,



The maximum operating temperature is 190 ℃,



Also has Porapak



Similar separation performance to Q. Before use, nitrogen or argon gas should be used as the carrier gas and aged at a temperature of around 150 ℃ for 24 hours.

Can effectively separate C1~C2 hydrocarbon gases and H2, CO2, methane solution, ammonia, etc




Particle size: 80-100 mesh



Packaging: 29g



Origin: United States



goods in stock:



Application:

1. Analysis of industrial formaldehyde solution

2. Determination of carbon dioxide, hydrogen sulfide, and moisture

3. Liquefied gas dimethyl ether

4. Determination of light hydrocarbons, methane, ethylene, ethane, acetylene