measure ethylene by gas chromatography

[tonnuthanhphuong]

Hello, everyone
I am Phuong. Now, I would like to measure ethylene gas by gas chromatography. First, I need to create a standards curve. The concentration of ethylene standard is 1000 ppm. Can you tell me how to prepare the standards curve?

[rb6banjo]

It is difficult to make these sorts of dilutions. You need very accurate methods for making pressure measurements.

What concentrations ethylene do you expect from your samples? I would take the simple route and get an ethylene standard that is similar to what's in my samples and assume linearity of the detector. If you're using a flame, it is a pretty good assumption.