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RI detector

Posted: Thu Apr 10, 2008 9:28 pm
by ebasarah
Hello Guys,

I need advice from someone who has good experience with R.I Detector to help me solve this problem.

I tried to detect ethylene glycol with R.I but the peak was broad( rectangular shape...flat on the top) and showing both positive and negative peaks.

What is the problem?

Thanks again!

Posted: Thu Apr 10, 2008 10:24 pm
by Consumer Products Guy
What's your EG concentration - you may be overloaded.

Posted: Thu Apr 10, 2008 11:04 pm
by ebasarah
1 % EG in ACN ; 5 microL injection

Posted: Fri Apr 11, 2008 12:31 am
by Consumer Products Guy
Yes, I'd dilute.