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- Posts: 45
- Joined: Thu Nov 05, 2009 6:28 am
I would like to ask you a possibly very simple question, but this question is very interesting to me. One of my students asked it to me. I will be glad if you can explain to me. Thanks in advance!
The question is next.
I would like to understand how to correctly calculate the Inlet temperature. I know that most experts often it is considered as +10-20C from the highest boiling compound in the mixture. Ok. But if, for example, I have lambda-cyhalothrin in my mix, which is often analyzed using GC. But, according to the reference material BP = 498.9C. How such a molecule evaporates at 250 degrees? Obviously, solvents change this parameter (boiling point) and it is enough for us to use 250-280 degrees on the evaporator to turn lambda-cyhalothrin molecules into vapor (gas).
Perhaps you can help me or somehow explain the principle of choosing the temperature for the Inlet (depending on the properties of the analyzed substances), and also perhaps there is some calculation (change) of the boiling point in solvent.
Thank you!
With best regards,