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GC/FID DMSO and column DB WAX (polyethylenglycol)

http://www.chromforum.org/viewtopic.php?t=5091

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GC/FID DMSO and column DB WAX (polyethylenglycol)

Posted: Thu Dec 07, 2006 2:22 pm
by demi_lune
bonjour,**

I have some problems with a solvent (DMSO: dimethylsulfoxide) and my column DB-WAX. in fact the profile of DMSO is not repeatable and i used this solvent as a diluent for elaborate a method of purity on a other solvent (Isobutylamine). Do you think that DMSO can react with my column?

Thanks....

Re: GC/FID DMSO and column DB WAX (polyethylenglycol)

Posted: Wed Dec 27, 2006 11:38 am
by stobs
Dear demi_lune,

because the boiling point of dmso is very high, i think vaporization of dmso in injector should be unstable. therefore the repeatability was not good.

as you know, volatile solvent is better sample solvent for gc analysis. :D

thanks,

bonjour,**

I have some problems with a solvent (DMSO: dimethylsulfoxide) and my column DB-WAX. in fact the profile of DMSO is not repeatable and i used this solvent as a diluent for elaborate a method of purity on a other solvent (Isobutylamine). Do you think that DMSO can react with my column?

Thanks....

Posted: Wed Jan 10, 2007 6:40 pm
by demi_lune
thanks for your response stobs
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