Advertisement

RI detector

Discussions about HPLC, CE, TLC, SFC, and other "liquid phase" separation techniques.

4 posts Page 1 of 1
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!

What's your EG concentration - you may be overloaded.

1 % EG in ACN ; 5 microL injection

Yes, I'd dilute.
4 posts Page 1 of 1

Who is online

In total there are 27 users online :: 2 registered, 0 hidden and 25 guests (based on users active over the past 5 minutes)
Most users ever online was 4374 on Fri Oct 03, 2025 12:41 am

Users browsing this forum: Google [Bot], Semrush [Bot] and 25 guests

Latest Blog Posts from Separation Science

Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

Subscribe to our eNewsletter with daily, weekly or monthly updates: Food & Beverage, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Liquid Chromatography

Gas Chromatography

Mass Spectrometry