Chemical Forums

Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: kienqttb44 on January 17, 2005, 09:20:48 PM

Title: gas chromatography
Post by: kienqttb44 on January 17, 2005, 09:20:48 PM

Hi!
My name is Kien, I from Vietnamese. I finding components of anchol by gas chromatography. Now I have some, example: Ethylacetate, Methanol, n-Propanol. But on chromatodiagram have 8 components, I see your hepl
Thank!

Title: Re:gas chromatography
Post by: Donaldson Tan on January 18, 2005, 04:56:39 AM

compare your results with pure sample of each component. each compound exhibits a unique retention time.

Title: Re:gas chromatography
Post by: kevins on January 18, 2005, 08:04:50 AM

Please also check the base line and the purity of the carrier gas.

Title: Re:gas chromatography
Post by: arie2044 on January 25, 2005, 10:41:06 AM

Hi
try to check for aceton, iso&1-propanol, ethanol, water can appear sometimes, in high sensitivity. if you tell what column & detector you use may be i can help you more.

Title: Re:gas chromatography
Post by: Mitch on January 25, 2005, 12:20:57 PM

Also run it through a GC-MS that'll give you more data.