Find a suitable chromatography column
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Quaternary system, including methyl chloride-isobutylene-isoprene-water, I want to use gas chromatography to determine the content of each component； Currently, I am using Shimadzu 2014 FID detector. I have used se-54 as a column and feel that the effect is not very good? I also chose the medium polarity column Rtx-1701, but the effect is still not good? Please tell me, what kind of pillar should I choose? Or what method should I use to achieve my goal? Please ask for help
First of all, FID cannot detect water. TCD must be used to detect water.
Find the Lanzhou Institute of Physics and Chemistry. They help select our chromatography columns.
This post was last edited by zbx on 2010-3-24 20:30. How can I contact you? Do you have the contact information of Lanhua Institute?
It is best to find relevant research institutes to solve such problems. If it cannot be solved, you can find chromatography suppliers to solve them. They will find ways to solve these problems for you. The key is that you have to do business with them and buy their chromatography columns.
Seek help from the chromatography column manufacturer, such as Lanhua Institute, etc. Contact information can usually be found online.
You can bring a sample to the chromatography supplier for testing. They all have different columns to test. We only have methyl chloride and water, which is not as complicated as your sample:)
It may not be possible to analyze the above compositions with one column, because the polarity of the components is very different, and the retention behavior on the same column will also be very different. It is best to use two detectors and combine them with columns with different retention properties to achieve simultaneous analysis.