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Ethyl acetate for GC/MS
Posted: Wed May 16, 2012 9:03 pm
by jvcastrojm
Hello I have a doubt regarding the use of ethyl acetate for the GC/MS analysis of a mix of pesticides. Is it a suitable solvent for GC/MS analysis?. Everybody uses hexane or isooctane. Is there any potential problem that I should know. I principle I can´t think in any trouble on using it, but I may be missing something.
Thanks a lot
Re: Ethyl acetate for GC/MS
Posted: Wed May 16, 2012 9:46 pm
by HbJ
You might find
this insightful.
Re: Ethyl acetate for GC/MS
Posted: Thu May 17, 2012 11:51 am
by Bigbear
I'm not pleased with using ethyl acetate but it is required for EPA method 525. I buy the best quality available. I test it before use by concentrating 25 mls to 1 ml and inject it into my system. I have had lots of phthalates from some suppliers.
Re: Ethyl acetate for GC/MS
Posted: Fri May 18, 2012 2:11 am
by Don_Hilton
It depends on the analysis. I've ocasionally selected ethyl acetate on purpose. If transesterification is a potential issue, you may want to go with something else.
Re: Ethyl acetate for GC/MS
Posted: Mon Jun 11, 2012 9:16 pm
by Richs
I'm not pleased with using ethyl acetate but it is required for EPA method 525. I buy the best quality available. I test it before use by concentrating 25 mls to 1 ml and inject it into my system. I have had lots of phthalates from some suppliers.
We use ethyl acetate for LL extraction. Which suppliers have or don't have phthalates?
Re: Ethyl acetate for GC/MS
Posted: Wed Jun 13, 2012 1:47 pm
by Bigbear
I use Burdick and Jackson.