How is it that carbon tetrachloride shows up on FID?

Basic questions from students; resources for projects and reports.

2 posts Page 1 of 1
It's a weak signal, admittedly, but how does it show up at all? CCl4 is not combustible under atmospheric conditions; are the FID conditions (gas mixture + higher temperature) responsible for allowing carbon tet to form ions that the detector reflects the detection of an analyte?
I would think that is correct. The FID looks for ionization not simply combustion, if the temperature can knock off even an electron should give a signal. Dichloromethane and Chloroform are also not considered combustible but they give signals, increasing sensitivity with decreasing number of halogens.
The past is there to guide us into the future, not to dwell in.
2 posts Page 1 of 1

Who is online

In total there are 7 users online :: 0 registered, 0 hidden and 7 guests (based on users active over the past 5 minutes)
Most users ever online was 599 on Tue Sep 18, 2018 9:27 am

Users browsing this forum: No registered users and 7 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, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Liquid Chromatography

Gas Chromatography

Mass Spectrometry